dc.contributor.author

value: Thao, T. D.

value: Phuong, V. D. T.

value: Phuong, B. C.

value: Tuan, N. A.

value: Minh, P. V.

value: Tu, D. M.

dc.identifier.citation

value: Thao T. D., Phuong V. D. T., Phuong B. C., Tuan N. A., Minh P. V., Tu D. M. 2021. Intention to apply total quality management in petroleum and liquefied petroleum gas in Vietnam’s enterprises. Russian Management Journal 19 (4): 494–514.

dc.description.abstract

value:
The purpose of this study is to point out the factors that promote and hinder the intention to
apply TQM in petroleum and liquefied petroleum gas enterprises in Vietnam. The study was
conducted based on survey data of 486 petroleum and liquefied petroleum gas enterprises in
Vietnam with the respondents being members of the business leadership or the person in charge
of quality management and collected during the period from October 2020 to February 2021.
The results show that the factors: (1) perception of the effectiveness of TQM; (2) perceived ease
of use of TQM; (3) perceived effectiveness of TQM compared to the old system; (4) the size of
charter capital has a positive effect; (5) the size of the labor force has a negative effect on the
intention to apply TQM in petroleum and liquefied petroleum gas enterprises in Vietnam. The
study also shows that the more modern the leaders in petroleum and liquefied gas enterprises
in Vietnam are, the easier it is to make decisions to apply TQM. And vice versa, if they are
traditional people, they will hinder intention to apply TQM in business.

value: TQM

value: application intention

value: quality management

value: petroleum business in Vietnam

value: liquefied gas business


dc.contributor.author

value: Tretyak, O. A.

value: Bilinkis, Yu. A.

value: Klimanov, D. E.

dc.identifier.citation

value: Tretyak O. A., Bilinkis Yu. A., Klimanov D. E. 2021. Business model of the sharing economy: Specifics, features and management challenges. Russian Management Journal 19 (4): 403–428. (In Russian)

dc.description.abstract

value:
The article substantiates the specific features of the business model of the sharing economy. The
reproduction of these features is based on the understanding of this emerging and rapidly developing
phenomenon, both in scientific research and in business practice (in this part, the authors rely
on a review of existing research on joint consumption and descriptions of cases of operating
companies in the field under study). For a systematic reproduction of the specifics and features
of the business model, the authors use a previously developed approach that has been tested in a
number of industry markets. Based on the identified specifics of the company’s business model,
which operates on the principles of the sharing economy, new management goals and functions
are identified, the implementation of which ensures the company’s success in the market.

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Russian Management Journal;Volume 19; Issue 4

dc.subject

value: sharing economy

value: business model

value: sustainable development

dc.type

value: Article

format: Adobe PDF


dc.contributor.author

value: Kusraeva, O. A.

dc.identifier.citation

value: Kusraeva O. A. 2021. Nation branding: Opportunities for business in Russia. Russian Management Journal 19 (4): 614–631. (In Russian)

dc.description.abstract

value:
The article presents the author’s position on the nation brand integration in the activities of
companies functioning in the country. The main approaches to the definition of nation branding
are analyzed. Primary opportunities created by the nation brand for business are revealed in the
context of different dominant ideas, including territorial branding, economic approach, political
science, communications, focus on one industry, and copying foreign practices. The correlation
between the concepts of propaganda and nation branding is established. The main advantages that
the nation brand creates for various activities implemented in the country are identified. Acquisition
of the desired position; formation of uniqueness and reputation management; strengthening of
competitiveness are identified as the three foremost functions of nation branding; the functions
are analyzed according to the benefits that nation brand creates for companies. To realize the
opportunities that nation brand creates for business, the principles of implementing nation brand
into the activities of companies in modern conditions are proposed.

dc.subject

value: nation brand

value: nation branding

value: business

value: destination branding

value: nation branding functions

value: propaganda


dc.contributor.author

value: Midler, E. A.

value: Arenkov, I. A.

value: Sharifyanov, T. F.

dc.identifier.citation

value: Midler E. A., Arenkov I. A., Sharifyanov T. F. 2021. Sharing digital infrastructure use by mobile providers: Investment solutions for sparsely populated territories of the Russian Federation. Russian Management Journal 19 (4): 548–571. (In Russian)

dc.description.abstract

value:
The article considers a mechanism of managerial strategic decisions development aimed at overcoming
the digital divide in the elaboration of Russian regions through the formation and use of
telecommunications infrastructure in small towns. The regions of the Arctic with absence or
underrepresented digital infrastructure are selected as the object of study. Understood as a system
of interaction between organizational and telecommunication subsystems, it is considered as a
management tool to ensure equable functioning and development of the information space. For
the purposes of this study, attention is focused on the study of its main component — mobile
communication networks. The study resulted in a model for planning investment decisions based
on the development of hybrid financing of telecommunications projects through the sharing of
digital infrastructure by mobile communication providers. The article substantiates the approach
based on planning strategies for joint activities of investors — mobile operators, which allows
reducing the burden on the state budget and attracting private capital to the development of a
sparsely populated area. As the main method of research, the method of grouping the population
according to the density of settlement is used. On the game theory basis, strategies for joint
planning and network behavior of investors are determined, eliminating digital gaps and
disproportions in the development of Russian localities and regions as a whole. It is concluded
that partnership as a management tool, especially, planning the development of digital infrastructure
in small towns, is the most effective way to reduce investment risks for all parties, and its
adaptation to the specifics of territories is a key task of management in the field of information
and communication technologies.

dc.subject

value: digital infrastructure

value: investment management

value: regional development

value: public private partnership

value: digital divide

value: Arctic region


dc.contributor.author

value: Golubeva, A. A.

value: Okulov, V. L.

dc.identifier.citation

value: Golubeva A. A., Okulov V. L. 2021. The creation of MIR: How the national payment card system originated in Russia. Russian Management Journal 19 (4): 592–613. (In Russian)

dc.description.abstract

value:
The case presents and invites to analyze the history and development prospects of the Russia’s
Mir national payment card system, to consider the decisions made at different stages of the
implementation of this national-scale project and their impact on the results of the project. The
creation of the national payment card system Mir is not just the most complex infrastructure
project in the field of financial technologies, but also a strategic project that has significantly
influenced the economic and social processes in Russia. Among the most significant goals of the
project there are: ensuring the sovereignty and security of the Russian financial system, developing
new opportunities for the targeted use of budgetary funds, and promoting modern digital technologies
in people’s daily lives. The case can be used during training sessions in economic and financial
disciplines, strategic management and public administration.

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Russian Management Journal;Volume 19; Issue 4

dc.subject

value: national payment system

value: Mir payment card

value: Bank of Russia

value: NSPK JSC

dc.title

value: Article


dc.contributor.author

value: Pogorelskaya, Anastasia M.

dc.identifier.citation

value: Pogorelskaya A. M. The EU normative power in development policy. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 456–474. https://doi.org/10.21638/spbu06.2021.406 (In Russian)

dc.description.abstract

value:
The article examines the peculiarities of EU normative power application in its development
policy towards the countries of the Global South. Despite the controversial results of seventy
years of efforts by the European Economic Community and then the European Union to promote development, the international situation and the difficulties inside the EU are making
the EU intensify its development policy and look for more effective tools. The author tries to
identify the reasons for the transformation of approaches in the EU development policy by
taking into account the influence of both external and internal factors affecting the EU’s ability
to exercise its normative power. It is concluded that, firstly, the internal factors including the
EU enlargements, solidarity crisis and Brexit are currently changing the EU’s ability to serve
as a normative power in its development policy. Secondly, the EU has not found any alternatives
to development policy in solving both global and its own difficulties in normative and
geopolitical aspects. Thirdly, the EU is still looking for more effective tools to both facilitate
development and exercise its normative power. The practical significance of the research is to
create a basis for elaborating and upgrading Russian development policy approaches since it is
very limited, but it could be beneficial for Russia in the world arena.

dc.description.sponsorship

value:
The article has been supported by a grant of the Russian Science Foundation. Project no. 22‑28‑00187
“Uncertainty as the Norm of Life: The EU Identity & Global Transformations”.

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. International Relations;Volume 14; Issue 4

dc.subject

value: normative power

value: development policy

value: the European Union

value: the European Economic Community

value: ACP countries

value: development


dc.contributor.author

value: Buijs, Peter

dc.identifier.citation

value: Buijs P. How physicians influenced Dutch nuclear weapon policies: A civil society case study. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 475–502. https://doi.org/10.21638/spbu06.2021.407

dc.description.abstract

value:
This case study describes activities from the Dutch Association for Medical Polemology (IPPNW-
affiliate NVMP-Physicians for Peace) from 1969 onwards, focused primarily on recent
strategies, employed by civil society, to influence Dutch policies regarding the urgency of abolishing
nuclear weapons due to their unacceptable medical and humanitarian consequences.
By itself and together with other civil society organisations, NVMP promoted an active Dutch
nuclear disarmament policy, specifically regarding the Non-Proliferation Treaty with its Article-
VI Global Zero-obligations, and the United Nations’ Treaty on the Prohibition of Nuclear
Weapons (TPNW). Several achievements of the NVMP are highlighted, from the Medical
Appeal (2015) to the 50th anniversary Congress (Hague Peace Palace, November 26, 2019) and
its aftermath. After presenting his major findings and conclusions, the author shares some experience-
based, policy-oriented recommendations about the specific physicians’ position and
their medical-humanitarian message, followed by suggestions on strategies for reaching out
to politicians, decision-makers, and statesmen that can help IPPNW affiliates elsewhere, and
other civil society organizations, who are promoting a nuclear weapon-free world. Finally, the
author petitions to repeat successful early 1980s Russian-American IPPNW initiatives, which
were directly aimed at their political leaders. The article concludes with the presentation of
one initiative.

dc.language.iso

value: en

dc.publisher

value: St Petersburg State University

value: nuclear weapons

value: nuclear disarmament

value: Non-Proliferation Treaty

value: Netherlands

value: Russia


dc.contributor.author

value: Kubyshkin, Alexander I.

dc.identifier.citation

value: Kubyshkin A. I. “The whole world is indebted to Russians”: Soviet-Canadian cooperation during Second World War. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 511–516. https://doi.org/10.21638/spbu06.2021.409 (In Russian)

dc.description.abstract

value:
Book review: Akimov, Yu. G. (ed.) (2020), The Nortern Allies: USSR and Canada in Great Patriotic
war PERIOD. Documents and Materials, St Petersburg: Skifiia-print Publ. 340 p.

dc.language.iso

value: ru

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. International Relations;Volume 14; Issue 4

dc.type

value: Article


dc.contributor.author

value: Shiraev, Eric

dc.identifier.citation

value: Shiraev E. The aging leader: Approaching age as a factor in international relations. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 446–455. https://doi.org/10.21638/spbu06.2021.405

dc.description.abstract

value:
This article goes against the grain of traditional approaches in international relations by claiming
that a leader’s biological age is a factor in this individual’s execution of foreign policy. The
traditional logic of political science that has generally been diminishing the impact of a leader’s
individual features on policy for the sake of institutional procedures needs to be reassessed. A
common assumption is that an aging king or president, especially those entering the eighth or
ninth decade of their lives, are likely to make prudent, balanced, and wise political decisions due
to their rich experience. However, this notion lacks sufficient empirical support from history. The
physical “wear and tear” of the aging leader, along with their declining psychological functions,
are likely to negatively impact their foreign-policy decisions that may fall under the influence of
the leader’s information overload, cognitive narcissism, profound stubbornness, as well as their
irrational sense of urgency, and their tendency to overcompensate. In democracies, the political
tenure of top politicians is limited by constitutional terms or scheduled elections. In authoritarian
systems, only the top figure’s death or incapacitation become actual “schedulers” of their political
tenure. Although a person’s advanced age should not disqualify him or her from public office,
without institutional checks on the leader’s judgements and behavior as well as the critical power
of public opinion and the press, the aging authoritarian leader can become unpredictably risky.

dc.subject

value: aging leader

value: authoritarian leader

value: information overload

value: political hoarding

value: cognitive narcissism


dc.contributor.author

value: Tkachenko, Stanislav L.

value: Zhiglinskaya Wyrsch, Natalia

value: Cui, Zheng

dc.identifier.citation

value: Tkachenko S. L., Zhiglinskaya Wyrsch N., Zheng Cui. Technology platform competition between the United States and China: Decoupling and sanctions against Huawei. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 378–392. https://doi.org/10.21638/spbu06.2021.401

dc.description.abstract

value:
Decoupling, defined as the deliberate and state-directed severing of economic ties between the
world’s two largest economies (the USA and China), is one of the most studied phenomena of contemporary
international relations. The growing confrontation between the political systems and
military machines of the United States and China extends into the economic sphere and increasingly
affects the field of high technology. A number of experts consider the conflict of the modern
superpowers for the leading position in the field of the new technologies as a manifestation
of techno-nationalism, a new type of mercantilism that plays a key role in industrial policy and
world trade of the leading economies of the planet. The article is focused on the new generation of
interstate conflict, in which the technological giants act as proxy institutions of U. S. and Chinese
state power. The distinctive feature of this new type of conflict is its overtly nonviolent nature. It
manifests itself in the use by both sides of tools borrowed from economic sanctions and trade wars
of the past. The China — US rivalry in the development and implementation of the latest technologies
is a non-military reincarnation of the thermonuclear arms race of the Cold War era. Nowadays
the most economically powerful states of the planet, led by the USA, choose instruments of
economic coercion to protect the existing status quo in the global system. Such measures allow
them to adapt elements of the arms race and power rivalry of past eras to modern conditions.

dc.language.iso

value: en

dc.publisher

value: St Petersburg State University

dc.subject

value: technological platforms

value: decoupling

value: international political economy

value: innovation mercantilism

value: Huawei Technologies


dc.contributor.author

value: Yarygin, Grigory O.

dc.identifier.citation

value: Yarygin G. O. U. S. climate institutions and the intelligence community: Domestic and international collaboration. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 432–445. https://doi.org/10.21638/spbu06.2021.404

dc.description.abstract

value:
Climate change presents an actorless threat. The most powerful world jurisdictions are undertaking
efforts to tackle this global threat multiplier. The Biden-Harris administration, returning
the U. S. back to international climate politics, claims the leadership role. The author of
the article examines how the administration’s climate rhetoric is backed up organizationally.
The institutional architecture that powers Biden’s climate policy is put at the center of the article’s
analysis. The United States intelligence community has been entrusted with a significant
role in running current U. S. institutional climate recovery efforts. The article approaches the
engagement of the intelligence community in climate policy from such angles as policymakers’
expectations of the intelligence community and its role and capabilities for domestic and
international collaboration. The article proceeds through three stages. The first stage presents
theoretical frameworks for new-institutional analysis approaches to climate policy of the
United States. The second examines how the Biden-Harris administration organizes institutions
in the system of climate policy. The third approaches the role and functions of the U. S.
intelligence community in climate change prevention policy. The author concludes that the
U. S. intelligence community possesses a strong capacity to provide for responsible decision
making in regard to the climate, however, mechanisms for domestic and international climate
intelligence exchange have yet to be determined.

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. International Relations;Volume 14; Issue 4

dc.subject

value: USA

value: new institutionalism

value: Biden-Harris administration

value: intelligence community

value: climate change policy

dc.title

value: Article


dc.contributor.author

value: Nemirova, Natalia V.

dc.identifier.citation

value: Nemirova N. V. Russian-American relations in the public opinion of Russia and the USA. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 409–431. https://doi.org/10.21638/spbu06.2021.403 (In Russian)

dc.description.abstract

value:
The article is devoted to the study of Russian-American relations through the prism of public
opinion of both countries. Foreign political views of citizens are an important element of international
politics in the modern information society; they directly affect the development
of international relations, providing an opportunity to legitimize and moralize foreign policy
decisions of world leaders. Based on open secondary data from opinion polls, the article traces
the history of the development of Russian-American relations in the post-Soviet period. The
author proves that the formation of anti-Americanism ideas underlying the current reversion
of consciousness to the Cold War era was formed by the early 2000s. The personality of
President Vladimir Putin and his foreign policy strategy have become decisive for Russian-
American relations, but at the same time, negative identification in the system of images of
“friends and enemies” of Russians and Americans is realized by value-based foreign policy
ideas, rather than by opportunistic situational value judgments. The media produces the existing
crisis agenda, influencing the emotional, rather than meaningful response in citizens’ opinions. The events of 2014 triggered the current long-term crisis in Russian-American relations,
a characteristic feature of which was the disparity (asymmetry) of mutual perceptions,
which intensified after 2018. This period is also characterized by an increase in the ambivalence
and turbulence of public opinion, primitivizing its model to the expression of the bloc
consciousness “for — against”, “friend — enemy”. For Russians, their stance on the Ukrainian
question alongside sanctions remain the key indicators in the perception of America. For
Americans, such indicators are the strengthening of totalitarianism in Russia and interference
in American elections. There are no short- and medium-term prospects for improving
Russian-American relations in the current period.

dc.language.iso

value: ru

dc.subject

value: public opinion

value: foreign policy

value: Russian-American relations

value: Russia


dc.contributor.author

value: Tsvetkov, Ivan A.

dc.identifier.citation

value: Tsvetkov I. A. The problem of US international obligations after withdrawal from Afghanistan: Is America ready to defend Taiwan? Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 393–408. https://doi.org/10.21638/spbu06.2021.402 (In Russian)

dc.description.abstract

value:
The article is devoted to the study of the evolution of US foreign policy towards the Taiwan
problem during the administration of Donald Trump and the beginning of Joe Biden’s presidency.
The situation in the Taiwan Strait is analysed in the article in the context of the withdrawal
of American troops from Afghanistan in August 2021. Despite the very specific selection
of the administration’s personnel and the general impulsiveness of President Trump’s
political decisions, his vision of the Taiwan problem coincided with a long-ripening desire in
the ranks of the American political elite to get rid of self-restraint in relations with Taiwan in
order to avoid open conflict with China. A result of the deterioration of US-China relations
and Trump’s related pro-Taiwan initiatives was high tension in the Taiwan Strait zone, and
a decrease of international support for Taiwan. At the same time, the complete destruction
of the traditional American “policy of strategic ambiguity” still did not occur. Biden’s first
steps have shown that while maintaining the appearance of a tough “Trump” approach to the
problem, he is intent on stabilizing the situation around Taiwan. The new president seeks to
maintain the level of ties with Taiwan achieved under Trump, while avoiding rash and provocative
decisions. Overall, it can be argued that Taiwan is increasingly moving into the focus
of American foreign policy. The withdrawal of troops from Afghanistan will not only not lead
to a decrease in the level of American guarantees in the Taiwan Strait, but, on the contrary, it
will make it possible to attract new resources here.

dc.publisher

value: St Petersburg State University

value: Taiwan

value: Taiwan problem

value: US-China relations

value: US allies


dc.contributor.author

value: Hartley, Ryan

dc.identifier.citation

value: Hartley R. Japan between China and Russia in Central Asia: Balancing, pragmatism, and cooperation. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 4, pp. 503–510. https://doi.org/10.21638/spbu06.2021.408

dc.description.abstract

value:
Book review: Murashkin, N. (2020), Japan and the New Silk Road: Diplomacy, Development and Connectivity,
London and New York: Routledge. 242 p.

dc.language.iso

value: en

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. International Relations;Volume 14; Issue 4

dc.type

value: Article


dc.contributor.author

value: Volkov, Alexey I.

value: Efremova, Alexandra O.

value: Tolstopyatova, Elena G.

value: Kondratiev, Veniamin V.

dc.identifier.citation

value: Volkov, A.I., Efremova, A.O., Tolstopyatova, E.G. et al. Synthesis and Electrochemical Properties of Manganese Dioxide as Cathode Material for Aqueous Zinc-Ion Batteries. Russ J Appl Chem 94, 1097–1104 (2021). https://doi.org/10.1134/S1070427221080115

dc.description.abstract

value: Manganese oxide film electrodes were prepared by electrodeposition on carbon paper. The structure of the deposited material corresponding to ε-MnO2 was determined using high-resolution X-ray diffraction. The specific capacity values of the manganese oxide-based cathode material (110–120 mA h g–1) and their dependence on the current density were obtained by cyclic voltammetry and galvanostatic charge/discharge. The variation in the capacitive characteristics of the material with an increase in the number of cycles was studied at multiple charge/discharge cycles (up to 200).

dc.description.sponsorship

value:
National Natural Science Foundation of China (NSFC)	21-53-53012
Russian Foundation for Basic Research (РФФИ) 21-53-53012

dc.publisher

value: Springer

value: Russian Journal of Applied Chemistry

dc.relation.ispartofseries

value: Applied Electrochemistry and Metal Corrosion Protection;

dc.subject

value: electrochemical synthesis

value: manganese oxide

value: zinc-ion batteries

value: speciﬁc capacity

dc.title.alternative

value: СИНТЕЗ И ЭЛЕКТРОХИМИЧЕСКИЕ СВОЙСТВА ДИОКСИДА МАРГАНЦА КАК КАТОДНОГО МАТЕРИАЛА ДЛЯ ВОДНЫХ ЦИНК-ИОННЫХ АККУМУЛЯТОРОВ

description: Accepted Pre-Proof Version


title: Исследование пирогенных территорий зоны притундровых лесов и редкостойной тайги (на примере Надымского лесничества ЯНАО)

dc.contributor.author

value: Чебыкина, Екатерина Юрьевна

value: Низамутдинов, Тимур Ильгизович

value: Абакумов, Евгений Васильевич

dc.description.abstract

value: В настоящее время последствия лесных пожаров в Арктике - одна из наиболее актуальных тем научных исследований, особенно в связи с оценкой роли экосистем тундры в процессах выделения и сохранения углерода. В рамках исследования были изучены постпирогенные почвы в тундровой зоне на примере Надымского района Ямало-Ненецкого автономного округа. Воздействию пожаров 2021 года был подвержен верхний слой моховой подстилки. В связи с низкими запасами надземной фитомассы в тундровых экосистемах основное воздействие пожара приходится именно на подстилку и органогенные почвенные горизонты.

dc.description.sponsorship

value: НЦМУ «Агротехнологии будущего"

dc.language.iso

value: ru

dc.publisher

value: Издательский дом «Республика Башкортостан»

dc.relation.ispartofseries

value: том 2;

dc.subject

value: почвы, лесные пожары, тундра, морфологическая организация, пирогенный признак

dc.type

value: Thesis

filename: ИСПРАВ. Сборник УРТ 2021 Т 2_Чебыкина.pdf


title: Заключение на проект постановления Правительства РФ  «Об утверждении номенклатуры должностей педагогических работников организаций, осуществляющих образовательную деятельность, должностей руководителей образовательных организаций»

dc.description.abstract

value: Abstract

dc.subject

value: госорганы

value: Постановление Правительства

value: номенклатура

value: педагогический работник

value: образовательная деятельность

value: руководитель образовательной организации

value: должность

dc.title

value: Other

filename: Заключение на проект постановления Правительства РФ.docx

format: Microsoft Word XML


title: БИОХИМИЧЕСКИЕ СВОЙСТВА КРИОКОНИТОВ ЛЕДНИКОВ ЦЕНТРАЛЬНОГО КАВКАЗА

dc.contributor.author

value: Е.В. Абакумов, Р.Х. Темботов

dc.description.abstract

value:
Криокониты представляют собой тёмный неконсолидированный осадок, который встречается на поверхности ледников в различных регионах Земли. Они играют
важную роль в деградации снежного и ледяного покрова полярных регионов и высокогорных ледников. На Центральном Кавказе отмечаются активные процессы дегляциации
ледников, происходящие в том числе из-за образования на их поверхности разнообразных криоконитов. Изучены биохимические свойства криоконитов, формирующиеся на
поверхностях ледников Гарабаши и Шхельда. Наряду с криоконитами, также изучались
приледниковые почвы и селевые отложения в высокогорной части Баксанского ущелья
Кабардино-Балкарии (Центральный Кавказ). Полученные данные показали, что криокониты, отобранные с разных ледников, проявляют различную активность ферментов. В
пробах, отобранных с ледника Шхельда не проявилась активность изученных ферментов.
В отличии от них, в первой пробе криоконита, отобранного с поверхности ледника Гарабаши, выявилась очень слабая активность инвертазы и слабая – каталазы. Во второй пробе, взятой с трещин ледника Гарабаши проявилась высокая активность уреазы, средняя
каталазы и очень слабая – дегидрогеназы. Изученные приледниковые почвы проявляют
различную активность ферментов. Наибольшую активность ферменты проявляют в поверхностных слоях изученных почв, а вниз по профилю активность снижается. Рассчитанная суммарная относительная ферментативная активность почв показала, что
наибольшей активность обладает горно-луговая, а наименьшей горная лесо-луговая почва. В отобранных с почвоподобных тел пробах, образовавшихся в результате схода сели,
также получены различные результаты. В пробе почвы, отобранной под растительным
покровом, обнаружилась слабая активность гидролитических ферментов, тогда как в
пробе без растительного покрова активность не проявилась ни для одного из изученных
ферментов.

dc.type

value: Article

filename: Статья Самара.pdf


title: The content of polyarenes in soils of antarctica: Variability across landscapes

dc.contributor.author

value: Lodygin, Evgeny

value: Abakumov, Evgeny

value: Nizamutdinov, Timur

dc.identifier.citation

value: Lodygin E, Abakumov E, Nizamutdinov T. The Content of Polyarenes in Soils of Antarctica: Variability across Landscapes. Land. 2021; 10(11):1162. https://doi.org/10.3390/land10111162

dc.description.abstract

value: Soil cover of the Earth is faced with intensive polychemical contamination. The pathways of the key pollutants are not investigated enough. Thus, the occasional transportation of soils to remote regions could serve as an informative tool for the elaboration of threshold levels of hazardous materials concentration. One of the most striking examples of such transboundary impact was the transfer of soils and grounds to the Antarctic stations Russkaya and Leningradskaya (before the implementation of the Madrid Protocol in 1991). Thus, the complex investigation of qualitative and quantitative composition of polycyclic aromatic hydrocarbons (PAHs) in soils of various genesis (transported from Eurasia and pristine) of Antarctic have been conducted by the method of high-performance liquid chromatography (HPLC) in a gradient elution mode. The variability of PAHs content was evaluated across landscapes: pristine (the Hudson Mountains and the Haswell Archipelago), contaminated soils (stations Myrniy, Druzhnaya 4 and Bellinshausen) and unique samples of former agrosoils transported by fly in-fly of polar staff from St. Petersburg to Antarctic for local polar greenhouses in the Soviet times, when it was not strictly prohibited. The selected objects of study allow us to not only estimate the degree of contamination of Antarctic soils and grounds, but to also make it possible to assess the rate of PAH degradation in Antarctic conditions. Both high molecular and low molecular PAHs are accumulated following intense anthropogenic activity (fossil organic fuel combustion). The PAHs pool is dominated by low molecular weight representatives (naphthalene, phenanthrene, fluoranthene, pyrene). In most cases, the highest concentrations of benz(a)pyrene does not exceed the Russian Threshold Standard rate, which is the strictest one in the world. The statistical analysis of raw data allowed us to conclude that the contamination of pristine soils of Antarctica across variable landscapes is at the very initial stage. However, we recorded extremely high levels of PAHs in the transported former agrosoils. We can assume that our data could be used as background levels for the elaboration of threshold concentrations of the PAHs for such an internationally managed region as Antarctica.

dc.language.iso

value: en

dc.publisher

value: Land


title: Historical dynamics of judicial and legal integration of the Russian Empire

dc.contributor.author

value: Verniaev, Igor

dc.description.abstract

value:
From its inception, the Russian Empire sought to create a unified judicial and legal space. Legal pluralism was not considered to be a value and something worth being preserved in the long term. However, multidimensional diversity of the population and regions, coupled with continuing expansion of the empire made achieving the strategic goal of legal and judicial homogeneity difficult.
The historiography of the question offers different viewpoints on the level of integration of the imperial judicial and legal system. Some researchers insist that the imperial center overall managed to unite and uniform the judicial system and the legislation. Others argue that the judiciary, legal culture, and norms remained heterogeneous in the estate, ethnic, religious, and regional dimensions.
The purpose of this book is to provide an objective assessment of the processes and outcomes of imperial judicial and legal integration from the 18th to the early 20th century. The findings demonstrate that the main method of integration was formation of hybrid justice and legal institutions. In this process, empire-wide judicial and legal models were adapted to the local specifics, while some elements of regional, ethnic and confessional judicial practices and legal cultures were incorporated into the imperial system of courts and legislation.
The highest level of judicial and legal uniformity was achieved among the elite strata. The commoners remained less integrated in this respect. Criminal law had become almost uniform for all regions, communities, and classes by the end of the imperial period. However, many sections of civil law remained diverse. While the middle and higher levels of the judiciary were integrated and uniform, unification affected local courts to a lesser extent. As a result, institutional heterogeneity was most prominent in the fields of local justice and civil law. The book examines creation and functioning of this hybrid space of local justice and civil law, in which imperial components coexisted with group, local, and regional ones.

dc.description.sponsorship

value:
The research was carried out with the support of the Russian Science Foundation within the framework of project No. 15–18-00119 “The Management of Ethnic Diversity and Ethno-confessional Conflict in Russia: An Interdisciplinary Study of the Imperial, Soviet, and Post-Soviet Experience”.
The publication was carried out with the support of St. Petersburg State University

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.subject

value: Russian empire

value: justice

value: criminal and civil law

value: judicial and legal diversity

value: integration of the judicial and legal system

value: local justice

value: ethnic diversity

dc.title

value: Book

filename: 620017_Верняев макет.pdf


dc.contributor.author

value: Bulgakova, Mariia A.

dc.identifier.citation

value: Bulgakova M. A. Non-Zero Sum Network Games with Pairwise Interactions. Contributions to Game Theory and Management, XIV, 38-48.

dc.description.abstract

value:
In the paper non-zero sum games on networks with pairwise interactions
are investigated. The first stage is network formation stage, where
players chose their preferable set of neighbours. In all following stages simultaneous
non-zero sum game appears between connected players in network.
As cooperative solutions the Shapley value and τ -value are considered. Due
to a construction of characteristic function both formulas are simpli ed. It
is proved, that the coeffcient λ in τ -value is independent from network form
and number of players or neighbours and is equal to 1/2 . Also it is proved that
in this type of games on complete network the Shapley value and τ -value
are coincide.

dc.description.sponsorship

value: This work was supported by the Russian Science Foundation (project No.17-11-01079).

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: cooperative games

value: network games

value: dynamic games

value: the Shapley value

value: τ -value

dc.type

value: Article


dc.contributor.author

value: Berezinets, Irina V.

value: Loginova, Anastasiya S.

dc.identifier.citation

value: Berezinets I. V., Loginova A. S. Economic Capital Allocation for Corporate Borrowers Credit Risk Coverage. Contributions to Game Theory and Management, XIV, 20-37.

dc.description.abstract

value:
Both the estimation of economic capital for bank's credit risk
coverage, and the allocation of economic capital by sources in order to determine
the contribution of individual elements to total credit risk play an
important role in the area of risk management of a bank. The estimation of
a bank's economic capital for credit risk coverage serves as a starting point
in the management of a bank's credit risk, while the allocation of economic
capital to cover credit risk among individual elements allows to answer the
question of how individual elements contribute to the total credit risk of a
bank, which makes it possible to take certain decisions on credit risk management
based on the obtained results of allocation. Nowadays, there are
various theoretical methods and approaches to solve this nontrivial issue.
The authors of the article attempted to implement them in practice, to estimate
economic capital for credit risk coverage of a commercial bank and
to allocate it among elements. This problem was solved applying the Euler
allocation method and kernel regression.

dc.description.sponsorship

value: This work was supported by Saint Petersburg State University under grants No 60419633

dc.language.iso

value: en

dc.publisher

value: St Petersburg State University

dc.subject

value: economic capital

value: allocation

value: credit risk

value: corporate borrowers


dc.contributor.author

value: Kumacheva, Suriya Sh.

value: Tomilina, Galina A.

dc.identifier.citation

value: Kumacheva S. Sh., Tomilina G. A. Information Collecting and Dissemination in the Network of Taxpayers: Bayesian Approach. Contributions to Game Theory and Management, XIV, 236-256.

dc.description.abstract

value:
The current research is based on the assumption that the result
of tax inspections is not only collection of taxes and fines. The information
about audited taxpayers is also collected and helps to renew a priori knowledge
of each agent's evasion propensity and obtain new a posteriori estimate
of this propensity. In the beginning of the following tax period the fiscal authority
can correct auditing strategy using updated information on every
taxpayer. Each inspection is considered as a repeated game, in which the
choice of agents to audit is associated with their revealed tendency to evade.
Taxpayers also renew the information on the number of inspected neighbors
using their social connections, represented by networks of various con gurations,
and estimate the probability of auditing before the next tax period.
Thus, the application of the Bayesian approach to the process of collecting
and disseminating information in the network of taxpayers allows to optimize
the audit scheme, reducing unnecessary expenses of tax authority and
eventually increasing net tax revenue. To illustrate the application of the
approach described above to the indicated problem, numerical simulation
and scenario analysis were carried out.

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: tax control

value: tax evasions

value: risk propensity

value: structured network

value: a posteriori information

value: Bayesian approach

dc.title

size: 13 MB


dc.contributor.author

value: Agieva, Movlatkhan T.

value: Korolev, Alexey V.

value: Ougolnitsky, Guennady A.

dc.identifier.citation

value: Agieva M. T., Korolev A. V., Ougolnitsky G. A. Static and Dynamic Game Theoretic Models of Opinion Control in Marketing Networks. Contributions to Game Theory and Management, XIV, 8-19.

dc.description.abstract

value:
In this paper we consider game theoretic models of control on networks
with application to marketing. We suppose that all strong subgroups
are determined in the stage of analysis of the in uence digraph, and the
control impact is exerted only to the members of those subgroups because
they determine all stable  nal opinions. An agent's opinion is interpreted as
his expenses for buying goods (services) of a  rm. The following problem of
opinion control is being studied. A dynamic (di erence) game in normal form
where the players solve the problem of maximization of the sum of opinions
of the members of a target audience by means of the closed-loop strategies
of impact to the current opinions of the members of strong subgroups. We
received the analytical solutions and conducted their comparative analysis.

dc.description.sponsorship

value: The work was supported by the Russian Science Foundation, project 17-19-01038.

dc.language.iso

value: en

dc.subject

value: games in normal form

value: models of impact and control on networks

value: marketing

dc.type

value: Article


dc.contributor.author

value: Chebotareva, Angelina

value: Su, Shimai

value: Tretyakova, Sophia

value: Gromova, Ekaterina

dc.identifier.citation

value: Chebotareva A., Su Shimai, Tretyakova S., Gromova E. On the Value of the Preexisting Knowledge in an Optimal Control of Pollution Emissions. Contributions to Game Theory and Management, XIV, 49-58.

dc.description.abstract

value:
For a classical differential game of pollution control, we consider
how the possession of specific information would impact the payoff of some
players compared to cases in which the knowledge of information is incomplete.
To measure the resulting discrepancy, we use the notion of value of
information (VoI). Specifically, we study two scenarios, one in which the role
of knowledge about the terminal cost is studied, and the other one, in which
we analyze the influence of knowledge about the exact value of the upper
bound on control. For each case, we obtain explicit analytical expressions for
the payoff functions. These functions are used to quantify the exact value of
information.

dc.description.sponsorship

value: The reported study was funded by RFBR and DFG, project number 21-51-12007.

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: differential game

value: pollution problems

value: value of information

value: optimal control and trajectory


title: Preface

dc.identifier.citation

value: Preface.Contributions to Game Theory and Management, XIV, 8-19.

dc.description.abstract

value: Preface

dc.language.iso

value: en


dc.contributor.author

value: Konyukhovskiy, Pavel V.

value: Holodkova, Victoria V.

dc.identifier.citation

value: Konyukhovskiy P. V., Holodkova V. V. Cooperative Game Theory Methods in the Analysis of Economic and Political Interaction at the International Level. Contributions to Game Theory and Management, XIV, 192-215.

dc.description.abstract

value:
The main attention is focused on the application of the methods
of the theory of cooperative games to the analysis of the relationship between
the leading actors in international politics, or, as they say, the centers
of power. One of the speci c features of the modern world is the "triple
type" of conflicts. Namely, at different levels of relationships, con ict situations
with three participants (players) are often observed. Such situations
are objectively characterized by the formation of possible paired coalitions,
rejecting the third. The main idea of the proposed approach is the transition
from cooperative games with deterministic values of characteristic functions
to their counterparts with stochastic values. One of the possible concepts of
solutions for stochastic cooperative games is associated with the extension
of the ideas of the bargaining set to them. Problems of development and
interpretation of this concept in the case of a triple conflict of international
centers of power. An essential advantage of this approach is the possibility of
meaningful interpretations of the significance level, at which the conditions
for the rationality of the shares of the players should be ensured, taking into
account the non-determinism of their utilities given by the characteristic
function.

dc.subject

value: game theory

value: cooperative games

value: stochastic cooperative games

value: bargaining set

value: intercountry interaction

value: centers of power

dc.type

value: Article


dc.contributor.author

value: Fedyanin, Denis

dc.identifier.citation

value: Fedyanin D. Equilibrium in Generalized Stackelberg Game with Arbitrary Memory and Planning Horizon of Players. Contributions to Game Theory and Management, XIV, 91-102.

dc.description.abstract

value:
The paper investigates game-theoretical properties of a model of
production dynamics on markets with wrong expectations of most producers
about the existence of a market. It might be a market of electrocars, green
energy space flights, paper books, theaters, oil energy, etc. The foundation
of a game-theoretical model is a special method for the generating of an
epistemic model from observations. The method is based on a generalization
of a classic model from the theory of mind and an idea of an observation
model is very similar to the model of moving average.We focused on periodic
solutions and introduced a control model for them. The control problem in
the model is an optimization problem for parameters of induced parametric
equilibrium in the game. The influence of the initial conditions on the overall
dynamics was modeled for some examples.

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: epistemic models

value: theory of mind

value: Cournot competition

value: evolution games


dc.contributor.author

value: Chirkova, Julia V.

dc.identifier.citation

value: Chirkova J. V. Computing the Price of Anarchy in Processor Load Balancing Game with Linear Delays. Contributions to Game Theory and Management, XIV, 72-81.

dc.description.abstract

value:
This paper considers a generalization of the processor load balancing
game also known as KP-model. A linear delay of a processor may
depend on not only its load but on loads of other processors. Players choose
processors of different speeds to run their jobs striving to minimize job's
delay, i.e., the job completion time on a chosen processor. The social cost is
the maximum delay over all processors. We propose a computing algorithm
of the exact PoA value which can be applied to estimate the POA visually if
its exact analytical expression is not obtained yet or it is rather complicated
to figure out its formula.

dc.language.iso

value: en

dc.subject

value: processor load balancing game

value: Nash equilibrium

value: price of anarchy

value: linear functional

value: computation


dc.contributor.author

value: Min, Cheng

value: Yin, Li

dc.identifier.citation

value: Min Cheng, Yin Li, New Characteristic Function for Two Stage Games with Spanning Tree. Contributions to Game Theory and Management, XIV, 59-71.

dc.description.abstract

value:
Two-stage n-player games with spanning tree are considered. The
cooperative behaviour of players is defined. After the first stage, a specified
player leaves the game with a probability that depends on the actions of
all players in the first stage. A new approach to the construction of the
characteristic function is proposed. In the game, all players are connected
with the source directly or indirectly. Assume that the players in coalition
N \ S have already connected to the source when the players in coalition
S ⊂ N wish to connect to the source. The players in coalition S could
connect to the source with the help of the players in coalition N \ S. A
new characteristic function is de ned in the game, and the Shapley value is
constructed. Several results based on the new characteristic function in the
two-stage stochastic game are given.

dc.subject

value: dynamic game

value: minimum cost spanning tree

value: Shapley value

dc.title

value: Article


dc.contributor.author

value: Enkhbat, Rentsen

value: Battur, Gompil

dc.identifier.citation

value: Enkhbat R., Battur G. Multi-objective Optimization Approach to Malfatti's Problem. Contributions to Game Theory and Management, XIV, 82-90.

dc.description.abstract

value:
In this work, we consider the multi-objective optimization problem
based on the circle packing problem, particularly, extended Malfatti's
problem (Enkhbat, 2020) with k disks. Malfatti's problem was examined
for the first time from a view point of global optimization theory and algorithm
in (Enkhbat, 2016). Also, a game theory approach has been applied
to Malfatti's problem in (Enkhbat and Battur, 2021). In this paper, we apply
the the multi-objective optimization approach to the problem. Using the
weighted sum method, we reduce this problem to optimization problem with
nonconvex constraints. For solving numerically the weighted sum optimization
problem, we apply KKT conditions and find Pareto stationary points.
Also, we estimate upper bounds of the global value of the objective function
by Lagrange duality. Numerical results are provided.

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: circle packing problem

value: triangle set

value: k disks

value: multi-objective optimization problem

value: upper bound


dc.contributor.author

value: Jingjing, Gao

value: Parilina, Elena

dc.identifier.citation

value: Jingjing Gao, Parilina E. Opinion Control Problem with Average-Oriented Opinion Dynamics and Limited Observation Moments. Contributions to Game Theory and Management, XIV, 103-112.

dc.description.abstract

value:
In the paper, we propose a model of opinion dynamics in the
presence of a center of influence. The center aims in distributing the opinion
closer to the target one minimizing the costs. We consider the case when the
center takes into account only some fixed number of observations from the
opinion trajectory and taking into account the di erence between the agent's
opinion and the socially desired opinion in these periods. The dynamics of
the state variable is given by a linear di erence equation. The player's cost
is a linear quadratic function with respect to the state variables and the
player's strategy. The Euler equation method is used to find the center's
optimal strategy. Numerical simulations of the theoretical results are given.

dc.description.sponsorship

value:
The work of the second author is supported
by the Russian Science Foundation (grant no. 17-11-01079).

dc.language.iso

value: en

value: opinion dynamics

value: social network

value: linear-quadratic games

value: Eulerequation approach


dc.contributor.author

value: Gavrilova, Anastasiya V.

value: Pankratova, Yaroslavna B.

dc.identifier.citation

value: Gavrilova A. V., Pankratova Ya V. About Construction of Realizability Arias of Salesman Strategies in Dynamic Salesmen Problem. Contributions to Game Theory and Management, XIV, 113-121.

dc.description.abstract

value:
The dynamic travelling salesman problem, where we assume that
all objects can move with constant velocity, is considered. To solve this NPhard
problem we use a game-theoretic approach and well-known solution
concepts of pursuit games. We identify the realizability areas of salesman
strategies depending on the initial positions of customers and their velocities.
We present different cases of realizability areas of salesman strategies
constructing in Python program with several numbers of customers.

dc.publisher

value: St Petersburg State University

value: dynamic travelling salesman problem

value: non-zero sum game

value: Nash equilibrium

value: realizability areas

dc.type

value: Article


dc.contributor.author

value: Ivashko, Anna A.

dc.identifier.citation

value: Ivashko A. A. Optimal Stopping in the Balls-and-Bins Problem. Contributions to Game Theory and Management, XIV, 183-191.

dc.description.abstract

value:
This paper considers a multistage balls-and-bins problem with
optimal stopping connected with the job allocation model. There are N
steps. The player drops balls (tasks) randomly one at a time into available
bins (servers). The game begins with only one empty bin. At each step, a
new bin can appear with probability p. At step n (n = 1, . . . ,N), the player
can choose to stop and receive the payoff or continue the process and move
to the next step. If the player stops, then he/she gets 1 for every bin with
exactly one ball and loses 1/2 for every bin with two or more balls. Empty
bins do not count. At the last step, the player must stop the process. The
player's aim is to find the stopping rule which maximizes the expected payoff.
The optimal payoff at each step are calculated. An approximate strategy
depending on the number of steps is proposed. It is demonstrated that the
payo  when using this strategy is close to the optimal payoff.

dc.description.sponsorship

value:
The study was carried out under state order to the Karelian Research Centre of the
Russian Academy of Sciences (Institute of Applied Mathematical Research KarRC RAS)

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: optimal stopping

value: job allocation

value: balls-and-bins problem


dc.contributor.author

value: Grinikh, Aleksandra L.

value: Petrosyan, Leon A.

dc.identifier.citation

value: Grinikh A. L.,Petrosyan L. A. Cooperative n-person Prisoner's Dilemma on a Network. Contributions to Game Theory and Management, XIV, 122-126.

dc.description.abstract

value:
In the paper n-person prisoner's dilemma on the network is investigated.
A cooperative game with the pairwise interaction of players is
constructed. The model is a modification of the classic 2-person prisoner's
dilemma problem in the game theory. Network interaction provide an ability
to take into account the in uence only to the adjacent players from the
whole set of players. The feature of the game is found that allows to make
a decision about necessity of playing dominated strategy by a few players.
This solution is based on the number of the adjacent players. The work is a
continuation of the paper published earlier by Grinikh A.L. and Petrosyan
L.A. in 2021.

dc.description.sponsorship

value:
This work was supported by the Russian Science Foundation under grant No.17-11-
01079.

dc.language.iso

value: en

dc.subject

value: pairwise interaction

value: cooperative game

value: prisoner's dilemma


dc.contributor.author

value: Ivakina, Anastasiia

value: Smirnova, Mariia

value: Zenkevich, Nikolay

dc.identifier.citation

value: Ivakina A., Smirnova M., Zenkevich N. The Multi-Objective Model of Working Capital Optimization. Contributions to Game Theory and Management, XIV, 155-182.

dc.description.abstract

value:
In recent years, the topic of supply chain finance has gained a
lot of attention from academia, but still, there are a lot of unexplored areas.
For example, the literature demonstrates a clear gap of adequate application
of numerous supply chain finance solutions for collaborative working capital
management (Gelsomino et al., 2019). This issue becomes more and more
important, specifically in terms of globalization and growing competition
between supply chains when liquidity and profitability improvement is of
paramount relevance. Companies focusing on their individual supply chain
issues and taking their own interests into account rather than understanding
the whole supply chain and collaborating with their partners are missing
fruitful areas for improvements (Wuttke et al., 2016). The authors address
this gap by developing a model for collaborative working capital management
through supply chain finance adoption for the case of the three-stage
supply chain. At the same time, the process of working capital optimization
is received as a multi-objective problem. The results obtained indicate
that the model of working capital optimization with concurrent use of multiple
supply chain finance solutions is able to provide an optimal solution
for all the cases considered in the research. It allows to decrease the total
financial costs on working capital and supply chain finance solutions making
individual ones not worse and at the same time achieve greater liquidity.

dc.description.sponsorship

value:
This work was supported by Saint Petersburg State University under grants No
60419633

dc.publisher

value: St Petersburg State University

dc.subject

value: working capital management

value: supply chain  finance solutions

value: inventory financing

value: reverse factoring

value: multi-objective optimization

value: goal programming

dc.title

value: Article


dc.contributor.author

value: Gubar, Elena

value: Taynitskiy, Vladislav

dc.identifier.citation

value: Gubar E., Taynitskiy V. A Survey on Two Viruses Extensions of Epidemic Model with Continuous and Impulse Control. Contributions to Game Theory and Management, XIV, 127-154.

dc.description.abstract

value:
The current study represents a survey on several modifications of
compartment epidemic models with continuous and impulse control policies.
The main contribution of the survey is the modification of the classical Susceptible
Infected Recovered (SIR) model with the assumption that two types
of viruses are circulating in the population at the same time. Moreover, we
also take into consideration the network structure of the initial population
in two-virus SIIR models and estimate the e ectiveness of protection measures
over complex networks. In each model, the optimal control problem
has been formalized to minimize the costs of the virus spreading and find
optimal continuous and impulse antivirus controllers. All theoretical results
are corroborated by a large number of numerical simulations.

dc.language.iso

value: en

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: epidemic process

value: compartment epidemic models

value: SIR model

value: optimal control

value: evolutionary games

value: virus mutation

value: structured population


dc.contributor.author

value: Korgin, Nikolay A.

value: Korepanov, Vsevolod O.

dc.identifier.citation

value: Korgin N. A., Korepanov V. O. Nash Bargaining Solution as Negotiation Concept for Resource Allocation Problem with Groves-Ledyard Mechanism. Contributions to Game Theory and Management, XIV, 216-226.

dc.description.abstract

value:
Motivated by research works on Zeuthen-Hicks bargaining, which
leads to the Nash bargaining solution, we analyze experimental data of resource
allocation gaming with Groves-Ledyard mechanism. The games were
designed in the form of negotiation to allow players to reach consensus.
Behavior models based on best response, constant behavior, and Nash bargaining
solution are defined. Analysis conducted over decisions made by
participants shows that a significant share of all decisions leads to an increase
of the Nash bargaining value. It is even higher than the share of
decisions that are in agreement with the best-response concept. Consensusended
games show light attraction to the Nash bargaining solution, it's less
than we obtained in games with the mechanism of Yang-Hajek from another
class of so-called proportional allocation mechanisms. We discuss differences
of consensus-ended games from timeout-ended games, what decisions lead
to the situations with the Nash bargaining value increasing and differences
between balanced mechanism Groves-Ledyard and unbalanced mechanism
Yang-Hajek.

dc.description.sponsorship

value: This work is partially supported by the RFBR, project no. 19-29-07525

dc.publisher

value: St Petersburg State University

value: resource allocation mechanisms

value: Nash implementation

value: Nash bargaining solution

value: Groves-Ledyard mechanism


dc.contributor.author

value: Kosian, David A.

value: Petrosyan, Leon A.

dc.identifier.citation

value: Kosian D. A., Petrosyan L. A., Two-Level Cooperative Game on Hypergraph. Contributions to Game Theory and Management, XIV, 227-235.

dc.description.abstract

value:
In the paper, the cooperative game with a hypergraph communication
structure is considered. For this class of games, a new allocation
rule was proposed by splitting the original game into a game between hyperlinks
and games within them. The communication possibilities are described
by the hypergraph in which the nodes are players and hyperlinks are
the communicating subgroups of players. The game between hyperlinks and
between players in each hyperlink is described. The payoff of each player
is influenced by the actions of other players dependent on the distance between
them on hypergraph. Constructed characteristic functions based on
cooperative behaviour satisfy the convexity property. The results are shown
by the example.

dc.description.sponsorship

value:
The work of the second author is supported by the Russian Science Foundation (grant
no. 17-11-01079).

dc.language.iso

value: en

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

value: cooperation

value: characteristic function

value: hypergraph

value: communication structure

dc.type

value: Article


dc.contributor.author

value: Kuzyutin, Denis

value: Skorodumova, Yulia

value: Smirnova, Nadezhda

dc.identifier.citation

value: Kuzyutin D., Skorodumova Yu., Smirnova N. Implementation of Subgame-Perfect Cooperative Agreement in an Extensive-Form Game. Contributions to Game Theory and Management, XIV, 257-272.

dc.description.abstract

value:
A novel approach to sustainable cooperation called subgameperfect
core (S-P Core) was introduced by P. Chander and M. Wooders in
2020 for n-person extensive-form games with terminal payoffs. This solution
concept incorporates both subgame perfection and cooperation incentives
and implies certain distribution of the total players' payoff at the terminal
node of the cooperative history. We use in the paper an extension of the S-P
Core to the class of extensive games with payoffs defined at all nodes of the
game tree that is based on designing an appropriate payoff distribution procedure
β and its implementation when a game unfolds along the cooperative
history. The difference is that in accordance with this so-called β-subgameperfect
core the players can redistribute total current payoff at each node
in the cooperative path. Moreover, a payoff distribution procedure from the
β-S-P Core satisfies a number of good properties such as subgame efficiency,
non-negativity and strict balance condition.
In the paper, we examine different properties of the β-S-P Core, introduce
several refinements of this cooperative solution and provide examples of its
implementation in extensive-form games. Finally, we consider an application
of the β-S-P Core to the symmetric discrete-time alternating-move model of
fishery management.

dc.description.sponsorship

value: Funding: The reported study was funded by RFBR, project number 21-011-44058.

dc.publisher

value: St Petersburg State University

dc.subject

value: extensive game

value: sustainable cooperation

value: subgame-perfect equilibrium

value: core

value: payoff distribution procedure

value: renewable resource extraction


dc.contributor.author

value: Tohmé, Fernando

value: Caterina, Gianluca

value: Gangle, Rocco

dc.identifier.citation

value: Tohmé F., Caterina G., Gangle R. A Categorical Characterization of a ①-Iteratively De ned State of Common Knowledge. Contributions to Game Theory and Management, XIV, 329-341.

dc.description.abstract

value:
We present here a novel approach to the analysis of common
knowledge based on category theory. In particular, we model the global epistemic
state for a given set of agents through a hierarchy of beliefs represented
by a presheaf construction. Then, by employing the properties of a
categorical monad, we prove the existence of a state, obtained in an iterative
fashion, in which all agents acquire common knowledge of some underlying
statement. In order to guarantee the existence of a fixed point under certain
suitable conditions, we make use of the properties entailed by Sergeyev's
numeral system called grossone, which allows a finer control on the relevant
structure of the infinitely nested epistemic states.

dc.language.iso

value: en

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

dc.subject

value: common knowledge

value: category theory

value: grossone


dc.contributor.author

value: Yin, Li

value: Petrosian, Ovanes

value: Jinying, Zou

dc.identifier.citation

value: Yin Li, Petrosian O., Jinying Zou. Dynamic Shapley Value in the Game with Perishable Goods. Contributions to Game Theory and Management, XIV, 273-289.

dc.description.abstract

value:
The paper investigates two-stage stochastic minimum spanning
tree games with perishable goods. The cooperative behaviour of the players
is defined. At each stage, all players jointly take action to construct a network
with a cost matrix. At the second stage, a particular player may leave
the game, and the probability of this leaving depends on the cooperative
behaviour of all players at the first stage. At each stage game, the total cost
of the spanning tree is calculated to include the sum of the costs of the contained
edges and the cost of the loss of perishable goods expended on that
edge of the spanning tree. The characteristic functions in the game are considered,
and the dynamic Shapley values are modified. The time consistency
of the dynamic Shapley values is studied.

dc.description.sponsorship

value: This work was supported by the China Scholarship Council (No.201508090030).

dc.publisher

value: St Petersburg State University

dc.subject

value: dynamic games

value: minimum cost spanning tree game

value: stochastic games

dc.title

value: Article


dc.contributor.author

value: Lozovanu, Dmitrii

value: Pickl, Stefan

dc.identifier.citation

value: Lozovanu D., Pickl S. On the Existence and Determining Stationary Nash Equilibria for Switching Controller Stochastic Games. Contributions to Game Theory and Management, XIV, 290-301.

dc.description.abstract

value:
In this paper we consider the problem of the existence and determining
stationary Nash equilibria for switching controller stochastic games
with discounted and average payoffs. The set of states and the set of actions
in the considered games are assumed to be finite. For a switching controller
stochastic game with discounted payoffs we show that all stationary equilibria
can be found by using an auxiliary continuous noncooperative static game
in normal form in which the payoffs are quasi-monotonic (quasi-convex and
quasi-concave) with respect to the corresponding strategies of the players.
Based on this we propose an approach for determining the optimal stationary
strategies of the players. In the case of average payoffs for a switching controller
stochastic game we also formulate an auxiliary noncooperative static
game in normal form with quasi-monotonic payoffs and show that such a
game possesses a Nash equilibrium if the corresponding switching controller
stochastic game has a stationary Nash equilibrium.

dc.subject

value: Stochastic game

value: Switching control

value: Stationary strategies

value: Stationary Nash equilibrium


dc.contributor.author

value: Naumova, Natalia I.

dc.identifier.citation

value: Naumova N. I. Computation Problems for Envy Stable Solutions of Allocation Problems with Public Resources. Contributions to Game Theory and Management, XIV, 302-311.

dc.description.abstract

value:
We consider generalizations of TU games with restricted cooperation
in partition function form and propose their interpretation as allocation
problems with several public resources. Either all resources are goods or all
resources are bads. Each resource is distributed between points of its set and
permissible coalitions are subsets of the union of these sets. Each permissible
coalition estimates each allocation of resources by its gain/loss function, that
depends only on the restriction of the allocation on that coalition. A solution
concept of "fair" allocation (envy stable solution) was proposed by the author
in (Naumova, 2019). This solution is a simplification of the generalized
kernel of cooperative games and it generalizes the equal sacrifice solution for
claim problems. An allocation belongs to this solution if there do not exist
special objections at this allocation between permissible coalitions. For several
classes of such problems we describe methods for computation selectors
of envy stable solutions.

dc.language.iso

value: en

dc.relation.ispartofseries

value: Contributions to Game Theory and Management;Volume 14

value: Wardrop equilibrium

value: envy stable solution

value: games with restricted cooperation

value: equal sacrifice solution


dc.contributor.author

value: Sedakov, Artem

dc.identifier.citation

value: Sedakov A. The International Conference on Game Theory and Management. Contributions to Game Theory and Management, XIV, 342-358.

dc.description.abstract

value:
This note overviews the Game Theory and Management conferences
that have been held annually at Saint Petersburg State University
since 2007.

dc.publisher

value: St Petersburg State University

value: conference

value: game theory

value: management

dc.type

value: Article


title: In Memory of Victoria Kreps

dc.identifier.citation

value: In Memory of Victoria Kreps. Contributions to Game Theory and Management, XIV, 359-362.

dc.description.abstract

value: In Memory of Victoria Kreps


dc.contributor.author

value: Smirnova, Mariia

value: Ivakina, Anastasiia

value: Zenkevich, Nikolay

dc.identifier.citation

value: Smirnova M., Ivakina I., Zenkevich N. Implementation of a Multi-Objective Working Capital Management Strategy for Financial Supply Chains. Contributions to Game Theory and Management, XIV, 312-328.

value:
The issue of adequate application of quantitative supply chain
(SCF) solutions for cooperative working capital management becomes more
and more important in terms of globalization and growing competition between
supply chains (SCs). Authors address the problem by developing models
for cooperative working capital management (WCM) through SCF adoption
for the case of the three-stage supply chain. The grounding for the
optimization is multicriteria approach. The multi-objective working capital
optimization model (Ivakina et al., 2021) allows to  nd optimal solution regardless
initial financial and liquidity position of SC. In the article, we use
this model to quantitatively implement a multi-objective working capital
management strategy on the cases of real supply chains. The results obtained
in the paper indicate that the model of working capital optimization
with concurrent use of multiple supply chain finance solutions can provide
an optimal solution for all the cases considered in the research. It allows
to decrease the total financial costs on working capital and supply chain
finance solutions making individual ones not worse and at the same time
achieve greater liquidity.

dc.description.sponsorship

value:
This work was supported by Saint Petersburg State University under grants No
60419633

dc.subject

value: working capital management

value: supply chain finance solutions

value: inventory financing

value: reverse factoring

value: goal programming

value: multi-objective optimization

value: base model of multi-objective working capital optimization


dc.contributor.author

value: Palamarchuk, Anastasia

value: Terenteva, Ekaterina

value: Fyodorov, Sergey

dc.identifier.citation

value: Palamarchuk A., Terenteva E., Fyodorov S. The Birth of the National Historical Writing in England and France. St. Petersburg: St. Petersburg University Press, 2021.

value:
The monograph is a study of main trends of emergence and evolution of the national historical writing in Western Europe in the XVIIth century. Based on a complex analysis of several phenomena which defined the development of the Early Modern historical writing, it provides a comparative analysis of the regional schools of historical writing (particularly those of the English antiquaries and French érudits) in the process of their respective growth and formation accomplished by the end of XVIIth century with the advent of the national historiography. The conceptual unity of the book is verified within the context of the rise of the national states in England and France, which stipulated a consistent demand for reinforcing the nationally orientated discourses not only in a historical writing but also in legal and political thought.
The perception of England as an empire, entrenched in the insular historical and legal consciousness, recurring during the reigns of the Stuarts and extending to the whole British archipelago, determined the establishment of chorography as a prevalent form characteristic of the English historiography. Chorographic structure of the narrative unfolding the space of the territorial “empire” to the reader corresponded to the method of “intellectual appropriation” of the British Isles by the English antiquarians which could be defined as “cultural-historical”. A considerable role was devoted to reactualization of ethnogenetic myths at different levels: while some of them (primarily – the Galfridian myth) were regarded as relevant to the pan-British cultural and historical past, others emphasized autonomous dimensions of the past and present of distinct composites (Scotland, Ireland, Wales)
The continental French variant of proto-national historiography also utilized the idea of empire but in a different mode defined by the formula “rex in regno suo imperator est”. The emerging school of érudits modelled principles of its narratives on patrimonial structures rooted in the feudal medieval society (dynasty; royal family; aristocratic lineages; seigneurial rights and vassal obligations; the system of offices created by the monarch stemming from the royal household etc.).  The unity of the subjects of the French kingdom was ensured not by the shared territorial commonality but by their loyalty to the king. Therefore, the French variant of “intellectual appropriation” was developed in a socio-political direction in contrast to the territorial.

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.subject

value: National Historical Writing

value: Antiquarians

value: Erudites

value: Discourse Analysis

value: Early Modern England

value: Early Modern France

dc.type

value: Book

filename: 620010_Паламарчук_Рождение национального историописания_макет.pdf


title: Guidelines for laboratory works. Thermodynamics. Ed. A.Kiprianov

dc.contributor.author

value: KIPRIANOV, ANDREY

value: VLASOV, ANDREY

value: BORISOVA, MARINA

value: SIROVAROVA, TATYANA

value: ANUFRIKOVA, IRINA

value: DOBRYAKOVA, IRINA

dc.description.abstract

value: The manual provides guidelines for students to conduct experimental work in a Physical Chemistry Workshop. The material is grouped by topic and presented in the form of four separate manuals. The first one is "Chemical Thermodynamics"

value:
В пособии представлены методические указания для проведения студентами экспериментальных работ в Практикуме Физической химии. Материал сгруппирован по темам и представлен в виде четырёх отдельных пособий: «Химическая термодинамика», «Гетерогенные равновесия», «Электропроводность растворов электролитов», «Гальванические элементы». Первое из названных пособий содержит «Правила выполнения студентами работ». В каждом пособии приводится программа коллоквиума, включающая теоретический материал, подробное описание работ, предлагаемых для выполнения и список литературы, необходимой для подготовки.
Указания предназначены для студентов бакалавриата по ООП «Химия».

dc.publisher

value: Institute of Chemistry, Saint Petersburg State University

dc.subject

value: physical chemistry

value: физическая химия

value: laboratory works,  manual

value: лабораторные работы, учебное пособие

dc.title.alternative

value: Методические указания к работам по физической химии. Практикум I.  Тема: Химическая термодинамика. Учеб. пособие. Под ред. Киприанова А.А.

value: Learning Object

filename: МУ_Коллоквиум I_2022.pdf


title: Предложения к проекту приказа Минспорта России «Об утверждении федеральных государственных требований к дополнительным предпрофессиональным программам в области физической культуры и спорта»

dc.contributor.author

value: Дмитрикова, Екатерина Александровна

dc.description.abstract

value: abstract

dc.language.iso

value: ru

dc.subject

value: госорганы

value: Минспорт России

value: федеральные государственные требования

value: дополнительные предпрофессиональные программы

value: физическая культура

value: спорт

dc.type

value: Other

filename: ЕАДмитрикова 9.09._РК 011-38-11759_предложения к проекту приказа Минспорта.docx


title: Предложения по корректировке проекта Номенклатуры должностей педагогических работников организаций, осуществляющих образовательную деятельность, должностей руководителей образовательных организаций

dc.description.abstract

value: Abstract

dc.subject

value: Минпросвещения России

value: Номенклатура

value: педагогический работник

value: образовательная деятельность

value: образовательная организация

value: руководитель образовательной организации

value: номенклатура должностей

dc.title

filename: _09 16 2021_Соловьев А А РК от 10 09 2021 №01_1-38-12594 Замечания к проекту Номенклатуры педагогических работников.doc

format: Microsoft Word

size: 52 kB


dc.contributor.author

value: Alekseeva, Nina P.

dc.identifier.citation

value: Alekseeva N.P. The symptom-syndrome analysis of multivariate categorical data based on Zhegalkin polynomials. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 394–405.

dc.description.abstract

value: In this article, we study the distribution, entropy and other informational properties of finite projective subspaces (syndromes) parameterized by impulse sequences with basic elements in the form of symptoms – polynomials over the field F2 which are known as Zhegalkin polynomials. It has been proven that the super syndrome, which is a linear syndrome with basic elements in the form of a multiplicative syndrome, is closed. If in the multiplication of two symptoms one is neutral, then we are talking about its majorization. The ordered by majorization symptoms form a majorized syndrome. Is proved that the majorized syndrome is closed and coincides with the super syndrome. The statements formulated in the first part of the paper are used to justify the convergence of the iterative procedure (PI), in which the most informative symptoms selected from partial super syndromes are again used in the next step. The stationary state of PI is obtained if all elements of the input set belong to either the same partial super syndrome or to the majorized syndrome. Thanks IP it is possible to quickly find the optimal syndrome from a large set of variables. An example from phthisiology shows how the specificity of classification can be improved using symptom analysis.

dc.description.sponsorship

value: This work is supported by Russian Foundation for Basic Research (grant No. 20-01-00096-а).

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 8 (66); Issue 3

dc.subject

value: multivariate analysis of categorical data

value: finite geometries

value: algebraic normal forms

value: entropy

value: uncertainty coefficient

value: iterative procedure

value: symptom-syndromic method

value: dimension reduction

value: classification

value: sensitivity

value: specificity

dc.type

value: Article


dc.contributor.author

value: Petrov, Аlexander G.

dc.identifier.citation

value: Petrov A.G. Areas of attraction of the pendulum under the influence of oblique vibration of the suspension point. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 511–522.

dc.description.abstract

value:
The inverse problem of stabilizing a spherical pendulum in a given position by means of
high-frequency vibration of the suspension point is posed. The position of the pendulum
is determined by the angle between the pendulum rod and the vertical. For any given
position of the pendulum, a one-parameter series of oblique vibration characteristics (the
amplitude of the vibration velocity and the angle between the vibration velocity vector and
the vertical) is found to stabilize the pendulum in this position. For the obtained series, the
regions of attraction are determined (the initial points from which a given stable position
of the pendulum will be established under the influence of vibration).

dc.description.sponsorship

value:
The work was carried out within the framework of the state task (state registration number AAAAA20-
120011690138-6).

dc.language.iso

value: ru

dc.subject

value: spherical pendulum

value: stability

value: vibration of the suspension point

value: inverse problem

value: region of attraction


dc.contributor.author

value: Pavlov, Dmitriy A.

dc.identifier.citation

value: Pavlov D.А. Constructive description of Hölder classes on some multidimensional compact sets. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 430–441.

dc.description.abstract

value:
We give a constructive description of Hölder classes of functions on certain compacts in
Rm (m > 3) in terms of a rate of approximation by harmonic functions in shrinking neighborhoods
of these compacts. The considered compacts are a generalization to the higher
dimensions of compacts that are subsets of a chord-arc curve in R3. The size of the neighborhood
is directly related to the rate of approximation   it shrinks when the approximation
becomes more accurate. In addition to being harmonic in the neighborhood of the compact
the approximation functions have a property that looks similar to Hölder condition.
It consists in the fact that the difference in values at two points is estimated in terms of
the size of the neighborhood, if the distance between these points is commensurate with
the size of the neighborhood (and therefore it is estimated in terms of the distance between
the points).

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 8 (66); Issue 3

dc.subject

value: constructive description

value: Hölder classes

value: approximation

value: harmonic functions

value: chord-arc curves


dc.contributor.author

value: Alexeev, Ivan A.

value: Khartov, Alexey A.

dc.identifier.citation

value: Alexeev I.A., Khartov A.A. On convergence and compactness in variation with shift of discrete probability laws. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 385–393.

dc.description.abstract

value: We consider a class of discrete distribution functions, whose characteristic functions are separated from zero, i. e. their absolute values are greater than positive constant on the real line. The class is rather wide, because it contains discrete infinitely divisible distribution functions, functions of lattice distributions, whose characteristic functions have no zeroes on the real line, and also distribution functions with a jump greater than 1/2. Recently the authors showed that characteristic functions of elements of this class admit the Lévy-Khinchine type representations with non-monotonic spectral function. Thus our class is included in the set of so called quasi-infinitely divisible distribution functions. Using these representation the authors also obtained limit and compactness theorems with convergence in variation for the sequences from this class. This note is devoted to similar results concerning convergence and compactness but with weakened convergence in variation. Replacing of type of convergence notably expands applicability of the results.

dc.description.sponsorship

value: The work of A.A.Khartov was supported by the joint Russian Foundation for Basic Research and German Research Foundation (grant No. 20-51-12004).

dc.subject

value: characteristic functions

value: Lévy-Khinchine type representations

value: convergence in variation

value: relative compactness

value: stochastic compactness

dc.title

value: Article


dc.identifier.citation

value: In memoriam of Valerij Mihajlovich Larionov. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 551–553.

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 8 (66); Issue 3


dc.contributor.author

value: Cull, Nicholas J.

dc.identifier.citation

value: Cull N. J. The forgotten process: Information disarmament in the Soviet/US reproachment of the 1980s. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 3, pp. 257–272.

dc.description.abstract

value:
This article contends that just as an excess of conventional arms requires a disarmament processes,
so the weaponization of media should be met with an information disarmament process.
The article examines elements of this work deployed to assist in the US — Soviet rapprochement
of the 1980s. Cases discussed include a mutual textbook review project, citizento-
citizen conferences mounted by the Chautauqua Society and a series of forums held via
satellite television links called Spacebridges. The emergence of government-to-government
information talks in which the United States Information Agency led by Charles Z. Wick
engaged various elements of the Soviet state media apparatus is traced. The meetings from
1986 through 1989 are summarized, including the frank discussion of the challenge of disinformation
and of mutual stereotyping. It is asserted that this process was more effective
than is generally remembered, but success required a rough symmetry within the US/Soviet
relationship. The internal crisis within the USSR repositioned the country as a junior partner
and led the US to misperceive the end of the Cold War in terms of victory and defeat, with
counterproductive results.

dc.language.iso

value: en

value: Vestnik of St Petersburg University. International Relations;Volume 14; Issue 3

dc.subject

value: information disarmament

value: propaganda

value: public diplomacy

value: disinformation

value: Spacebridges

value: citizen diplomacy

value: exchange diplomacy

value: Cold War

value: US — Soviet Relations

value: Reagan

value: Gorbachev

value: United States Information Agency


dc.contributor.author

value: Zvonarev, Nikita K.

dc.identifier.citation

value: Zvonarev N.K. Search of weights in the problem of finite-rank signal estimation in presence of noise. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 417–429.

dc.description.abstract

value:
The problem of weighted finite-rank time-series approximation is considered for signal
estimation in “signal plus noise” model, where the inverse covariance matrix of noise is
(2p+1)-diagonal. Finding of weights, which improve the estimation accuracy, is examined.
An effective method for the numerical search of the weights is constructed and proved.
Numerical simulations are performed to study the improvement of the estimation accuracy
for several noise models.

dc.description.sponsorship

value: The work is supported by Russian Foundation for Basic Research (grant No. 20-01-00067).

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 8 (66); Issue 3

dc.subject

value: time series

value: Cadzow’s iterative method

value: time series of finite rank

value: weighted lowrank approximation

value: Kullback – Leibler divergence

value: optimization methods

dc.type

value: Article


dc.contributor.author

value: Kholshevnikov, Konstantin S.

value: Balyaev, Ivan A.

value: Sokolov, Leonid L.

value: Eskin, Boris B.

dc.identifier.citation

value: Kholshevnikov K. S., Balyaev I.A., Sokolov L. L., Eskin B. B. Retrospective analysis of the orbits of asteroids colliding with the Earth. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 523–532.

dc.description.abstract

value:
In this paper, we consider the trajectories of real and model asteroids that lead to collisions
with the Earth. They highlight the close approaches to the Earth that precede the impact.
The presence of such approaches allows you to detect a dangerous object in advance, clarify
its orbit, and also use the effect of a gravitational maneuver to economically prevent an
asteroid from hitting the Earth. The article considers various families of collision trajectories:
possible trajectories of real dangerous asteroids, as well as model ones trajectories
that are not linked to a specific object. It is shown that in the first case, the approaches
preceding the collision are noticeably greater.

dc.description.sponsorship

value:
This work is supported by Russian Foundation for Basic Research (grant No. 19-32-90149) and using
the equipment of the resource center of the St. Petersburg State University Science Park “Computing
Center”.

dc.subject

value: asteroid hazard

value: trajectories

value: collisions

value: approaches


dc.contributor.author

value: Popkov, Alexander S.

dc.identifier.citation

value: Popkov A.S. Construction of reachability and controllability sets in a special linear control problem. Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes, 2021, vol. 17, iss. 3, pp. 294-308.

dc.description.abstract

value:
The article considers the problem of constructing reachability and controllability sets for
a control problem. The motion of an object is described by a linear system of ordinary
differential equations, and control is selected from the class of piecewise-constant functions.
Straight boundaries are also set on the controls. The article provides definitions of reacha-
bility and controllability sets. It is shown that the problems of constructing these sets are
equivalent and can be reduced to the problem of linear mapping of a multidimensional cube.
The properties of these sets are also given. In addition, the existing approaches to solving
the problem are analyzed. Since they are all too computationally complex, the question of
creating a more efficient algorithm arises. The work proposes an algorithm for constructing the required sets as a system of linear inequalities. A proof of the theorem showing the correctness of the algorithm is provided. The complexity of the presented approach is estimated.

dc.description.sponsorship

value: This work was supported by the Russian Foundation for Basic Research (project N 19-31-90033).

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. Applied Mathematics. Computer Science. Control Processes;Volume 17; Issue 3

dc.subject

value: control

value: optimal control

value: piecewise-constant control

value: reachability set

value: controllability set

value: linear mapping

value: Fourier — Motzkin elimination


dc.contributor.author

value: Rather, Nisar Ahmad

value: Ali, Liyaqat

value: Gulzar, Suhail

dc.identifier.citation

value: Rather N.A., Ali L., Gulzar S. Lp-inequalities for the polar derivative of a lacunary-type polynomial. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 502–510.

dc.description.abstract

value:
In this paper, we extend an inequality concerning the polar derivative of a polynomial in
Lp-norm to the class of lacunary polynomials and thereby obtain a bound that depends on
some of the coefficients of the polynomial as well.

dc.language.iso

value: en

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 8 (66); Issue 3

dc.subject

value: Lp-inequalities

value: polar derivative

value: polynomials

dc.title

value: Article


dc.contributor.author

value: Velikaya, Anna A.

dc.identifier.citation

value: Velikaya A. A. Strategic consulting and capacity building in US humanitarian policy. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 3, pp. 293–312.

dc.description.abstract

value:
Strategic advising and capacity building are closely interconnected, as they involve the deployment
to foreign countries of American advisers who will act by strengthening democratization,
attracting military and police contingents, civil administrators, providing humanitarian assistance,
economic stabilization and infrastructure development. All of these instruments are
aimed at strengthening American influence everywhere and are used by Washington through
the activities of American advisers dealing working in developing and post-conflict countries.
The practice of the U.S. strategic advising and capacity building exists since the 1940s, during
the Cold war it was aimed at confrontation with the socialist system. The role of advisers in
advancing interests is enormous and ubiquitous: from Ukraine to Syria, from Somalia to Haiti.
It is closely related to other instruments of American humanitarian policy: public diplomacy,
educational exchanges, development assistance. The transplant of US civil society concepts to
foreign countries is doubtful, but meets American goals. The author evaluates US system of
strategic advising and capacity building analysing activities of federal ministries and agencies.
The hypothesis of the article that Washington would use these instrumwnts more broadly,
and theyvwould be oriented more explicitly towards national defence interests. The article
includes SWOT analysis of the US system of strategic advising and capacity building.

dc.language.iso

value: ru

dc.publisher

value: St Petersburg State University

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. International Relations;Volume 14; Issue 3

dc.subject

value: strategic advising

value: capacity building

value: nation building

value: humanitarian policy

value: USAID

value: USIP


dc.contributor.author

value: Zhuravleva, Victoria Yu.

dc.identifier.citation

value: Zhuravleva V. Yu. American presidents in polarized D.C.: From Barack Obama to Joe Biden. Vestnik of Saint Petersburg University. International Relations, 2021, vol. 14, issue 3, pp. 334–347.

dc.description.abstract

value:
In 1960 one of the leading researchers of the American Presidency, professor and an adviser
to a number of US presidents Richard Neustadt formulated the iconic formula where presidential
power needed to cooperate with the Congress — persuade, negotiate and compromise.
But since political reality has changed so deeply, today only a God gifted negotiator is able to
fulfill its power in polarized Washington, D.C. A modern day president should be a legislator
and a showman rolled into one to succeed in his mission. According to the Constitution, the
American legislative process is based on the consensus between all participants, while both
the President and the Congress have the power of legislative initiative. It is the president who
is responsible for gaining this consensus between all the initiators. In time of political polarization
parties which traditionally had been the facilitators of this way to compromise became
the main obstacles. From the presidential ticket to the Congress, they turned out to be the
main headache of the president. Joe Biden came to White House with a reputation of being
a skilled compromiser. But while it has been his advantage with the electorate, the left wing
of his party strongly opposes his centrist ideology. Donald Trump named himself a brilliant
deal maker, but his business experience of making deals appeared to be irrelevant in polarized
D.C. Why has it turned out to be so hard to bring a consensus to today’s political process? Will
Biden be able to change this trend and reunite the Nation as he promised during his inauguration?

dc.relation.ispartofseries

value: Vestnik of St Petersburg University. International Relations;volume 14

value: polarized political process

value: divided parties

value: divided electorate

value: presidential mandate

value: the power of bureaucracy

value: the Progressive Caucus

value: the Republican Study Committee