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О структуре равновесий Нэша и их устойчивости к локальному объединению в модели эндогенного формирования коалиций
Математическое моделирование. 2013. Т. 25. № 4. С. 44–64.
Vartanov S., Сосина Ю. В.
Language:
Russian
Spiridonov V. P., Belousov N. M., Sarkissian G. A., Analysis and Mathematical Physics 2026 Vol. 16 Article 96
Hyperbolic hypergeometric integrals are defined as Barnes-type integrals of products of hyperbolic gamma functions. Their reduction to ordinary hypergeometric functions is well known. We study in detail their degeneration to complex hypergeometric functions. Namely, using uniform bounds on the integrands, we prove that the univariate hyperbolic beta integral and the conical function degenerate to two-dimensional ...
Added: August 4, 2026
Gayfullin S., Kikteva V., Results in Mathematics 2026 Vol. 81 No. 5 Article 146
In this paper we obtain a criterion of flexibility for an affine complexity-zero horospherical variety. This result generalizes previously known results on flexibility of normal horospherical varieties, horospherical varieties with an action of a semisimple group, and non-normal toric varieties. ...
Added: August 3, 2026
Lunts V., Функциональный анализ и его приложения 2026 Т. 60 № 3 С. 127–129
Доказано, что канонические полуортогональные разложения производной категории диаграммной схемы индуцируют аналогичные разложения подкатегории совершенных комплексов. ...
Added: August 3, 2026
Belomestny D., Gasnikov A., Gladin E. et al., Russian Mathematical Surveys 2026 Vol. 81 No. 4(490) P. 3–90
Reinforcement learning (RL) is increasingly grounded in tools from probability, optimization, and operator theory. This survey organizes the mathematical structures that underpin the design and analysis of modern algorithms in RL. We begin from Markov decision processes (MDPs) and the Bellman operators, emphasizing contraction mappings, monotonicity, and fixed-point theory that yield convergence guarantees and rates ...
Added: August 3, 2026
Radomskii A., Mathematical notes 2026 Vol. 119 No. 6 P. 1136–1147
We obtain an upper bound for the sum $\sum_{n\leq N} (a_{n}/\varphi (a_{n}))^{s}$, where $\varphi$ is Euler's totient function, $s\in\mathbb{N}$, and $a_{1},\ldots, a_{N}$ are positive integers (not necessarily distinct) with some restrictions. As applications, for any $t>0$, we obtain an upper bound for the number of $n\in [1,N]$ such that $a_{n}/ \varphi (a_{n})> t$. ...
Added: July 31, 2026
Kanaev E., Southeast Asia: Actual Problems of Development 2026 Vol. 1 No. 1(70) P. 153–163
The article aims to specify the degree of success Cambodia has been able to achieve in developing its Artificial Intelligence (AI) ecosystem seen through the prism of the state of the country’s non-digital assets as an outcome of its economic modernization, as well as of its digital projects and initiatives. Outlining the specifics of Cambodia’s ...
Added: July 30, 2026
Kanaev E., Юго-Восточная Азия: актуальные проблемы развития 2026 Т. 1 № 1(70) С. 22–36
The article aims to specify possibilities and system constraints of cooperation between the Association of Southeast Asian Nations (ASEAN) and the Russian Federation (RF) in the digital field, as well as assess its most promising directions. The nature and specifics of ASEAN’s policy in the digital field from the perspective of implementation of its initiatives ...
Added: July 30, 2026
Evgeny A. Kanaev, Berezhnaya A., Southeast Asia: Actual Problems of Development 2026 Vol. 2 No. 2(71) P. 175–187
The article examines the significance and the place of the digital tools developed by the Regional Comprehensive Economic Partnership (RCEP) in the priorities of the Socialist Republic of Vietnam (SRV). On tracing the RCEP’s origins, evolution, and interim outcomes obtained to date, the article proceeds with assessing the efficiency of the RCEP’s digital tools to ...
Added: July 30, 2026
Kanaev E., Southeast Asia: Actual Problems of Development 2026 Vol. 2 No. 2(71) P. 11–22
The author focuses on a strengthening digital component in the evolution of the South China Sea issue in the context of ASEAN’s evolving approach to the deepening contradictions and its policy in the digital field. On outlining ASEAN’s policy on the South China Sea issue, the author proceeds to exploring the digital agenda of ASEAN’s ...
Added: July 30, 2026
Федеральное государственное бюджетное учреждение науки Институт Европы Российской академии наук, 2026.
This edited volume examines the place of the European Union in the global economy during the first quarter of the twenty-first century against the backdrop of an emerging global economic order in which BRICS countries are playing an increasingly important role. Particular attention is paid to the evolution of the EU’s integration strategy – its ...
Added: July 30, 2026
Fain E., Korotayev A., Полис. Политические исследования 2026 № 4 С. 170–183
In the 21st century, the theory of revolutions has encountered a number of theoretical and practical difficulties, the main one being the conceptualization of revolutions. At the moment, the theory needs new focuses and approaches. One potential innovation that could enrich the theory is the concept of “coupvolution”, which emerged after the Egyptian Revolution of ...
Added: July 30, 2026
Абызов А. Н., Буутай П. Н., Математика и теоретические компьютерные науки 2026 Т. 4 № 2 С. 4–75
This paper is expository and methodological in nature and is devoted to the development of E.I. Zolotarev’s ideas embedded in his approach to the proof of the quadratic reciprocity law (1872). We consider extensions of Zolotarev’s approach to abstract number rings presented in the work of A. Brunyate and P.L. Clark (2015), and to finite ...
Added: July 30, 2026
Ponomarenko A., / Series Computer Science "arxiv.org". 2025.
This paper addresses the challenge of merging hierarchical navigable small world (HNSW) graphs, a critical operation for distributed systems, incremental indexing, and database compaction. We propose three algorithms for this task: Naive Graph Merge (NGM), Intra Graph Traversal Merge (IGTM), and Cross Graph Traversal Merge (CGTM). These algorithms differ in their approach to vertex selection ...
Added: July 30, 2026
Mikhaylets E. V., Razorenova A. М., Chernyshev V. L. et al., Scientific Reports 2026 Vol. 16 Article 23560
Meditation offers a naturalistic paradigm for studying introspection, yet the neural dynamics of advanced tantric practices remain largely unexplored. Buddhist Highest Yoga Tantra (BHYT) comprises a sequence of eight dissolution stages culminating in the “clear light” state. We recorded EEG during eyes-closed BHYT meditation performed in monasteries and hermitages (51 sessions from 36 male practitioners; ...
Added: July 29, 2026
Biryuk D., Инженерные кадры - будущее инновационной экономики России 2025 № 1 С. 1677–1679
The article is devoted to the study of the impact of budget indicators on the level of development of public-private partnership (PPP) in the constituent entities of the Russian Federation. The relationship between such indicators as budget security, the level of subsidization, gross regional product (GRP), the volume of public debt and the volume of ...
Added: July 29, 2026
Biryuk D., Инженерные кадры - будущее инновационной экономики России 2025 № 1 С. 1680–1682
The article examines the issues of accounting for budget obligations under public-private partnership (PPP) projects in budget reporting. International standards for budget accounting, such as the accrual method and the cash method, are highlighted. The analysis of the Russian experience is carried out, where the cash method is used, which limits the transparency of PPP ...
Added: July 29, 2026
Мкртчян Р. В., Международный дискуссионный клуб «Валдай» 2026
Проект «Четвертой республики» в Армении представляет собой попытку переосмысления постсоветской модели государственности, в рамках которой карабахский вопрос выступал центральным элементом национальной идентичности и ключевым ресурсом легитимации власти.
Победа партии «Гражданский договор» и инициируемая ею конституционная реформа, предполагающая отказ от прежних правовых оснований, фиксируют переход к модели, где приоритетом становится не идеологический проект, а императив выживания государства.
Инициатива ...
Added: July 29, 2026
Попеленский Ф. Ю., Математический сборник 2026 Т. 217 № 2 С. 108–153
In a recent paper Buchstaber and the author introduced a new structure on the cohomology of Hopf algebras in terms of the Buchstaber spectral sequence (Bss). We fully calculate this structure on the cohomology (known for a long time) of the important Hopf subalgebra A(1) of the classical Steenrod algebra A2.
As part of a demonstration ...
Added: July 28, 2026
Metlov K., Andrei B. Bogatyrëv, Annalen der Physik 2026 Vol. 538 No. 6 Article e70234
Thanks to the recent progress in bulk full three-dimensional nanoscale magnetization distribution imaging, there is a growing
interest to three-dimensional (3D) magnetization textures, promising new high information density spintronic applications.
Compared to 1D domain walls or 2D magnetic vortices/skyrmions, they are a much harder challenge to represent, analyze and
reason about. Here we build analytical representation for such ...
Added: July 28, 2026
Chernov D., Nesmashnyi A., Safranchuk I. et al., International Interactions 2026 Vol. 52 No. 4 P. 661–686
The determinants of foreign interventions, be they military interventions or other forms of foreign involvement, are important for modern international relations and conflict studies. Nevertheless, major methodological problems with the analysis are often overlooked. This paper proposes modeling interventions as a two-stage decision-making process. The first stage determines whether a specific target state is intervenable ...
Added: July 27, 2026
Menovshchikov A., Ukhlov A., Rendiconti del Circolo Matematico di Palermo 2026 Vol. 75 Article 91
We consider the nonlinear Neumann eigenvalue problem in outward cuspidal domains with a weighted measure. Using composition operators on Sobolev spaces, we establish embeddings of Sobolev spaces into weighted Lebesgue spaces. These embeddings give the solvability of the Neumann spectral problem in this setting and provide estimates for the corresponding weighted Neumann eigenvalues. ...
Added: July 27, 2026
Menovshchikov A., Journal of Mathematical Sciences 2026 Vol. 298 P. 608–618
We study the set of (p, q)-eigenvalues of the p-Laplace operator with no-flux boundary conditions. We show that this set is closed and that its smallest positive element (the first nontrivial eigenvalue) admits a variational characterization. Moreover, we establish lower bounds for this eigenvalue in cuspidal domains. ...
Added: July 27, 2026
Vasily Gusev, Iakov Zhukov, / Series WP BRP 268/EC/2024 " ECONOMICS". 2024.
This paper investigates two approaches to determining the leader of a coalition partition: the individual and the collective. In the first approach, each coalition in the partition chooses a representative, and then the leader is chosen from among all the representatives. In the second approach, the leading coalition in the partition is chosen, and then ...
Added: October 14, 2024
Vartanov S., Математическая теория игр и ее приложения 2012 Т. 4 № 1
Рассматривается модель эндогенного формирования коалиций в больших множествах игроков (агентов). Предпочтения каждого агента характеризуются его идеальной точкой, при этом агенты распределены на множестве идеальных точек в соответствии с некоторым законом. Политика коалиций определяется как медиана распределения по идеальным точкам её участников. Выигрыш агента зависит от удаленности его идеальной точки от политики выбранной им коалиции и ...
Added: October 1, 2023