?
Modeling optimal social choice: matrix-vector representation of various solution concepts based on majority rule
Journal of Global Optimization. 2013. Vol. 56. No. 2. P. 737–756.
Various Condorcet consistent social choice functions based on majority rule (tournament solutions) are considered in the general case, when ties are allowed: the core, the weak and strong top cycle sets, versions of the uncovered and minimal weakly stable sets, the uncaptured set, the untrapped set, classes of k-stable alternatives and k-stable sets. The main focus of the paper is to construct a unified matrix-vector representation of a tournament solution in order to get a convenient algorithm for its calculation. New versions of some solutions are also proposed.
Research target:
Mathematics
Political Science, International Relations, and Public Administration
Economics and Management
Computer Science
Language:
English
Keywords: турнироптимальные системыядротеория графовsolution conceptmajority relationtournamentmatrix-vector representationcondorcet winnercoretop cycleuncovered setweakly stable setexternally stable setuncaptured setuntrapped setk-stable alternativek-stable setконцепция решениямажоритарное отношениематрично-векторное представлениепобедитель Кондорсемаксимальный циклнепокрытое множествослабоустойчивое множествовнешнеустойчивое множествонезахваченное множествонезапертое множествоk-устойчивая альтернативаk-устойчивое множествомоделирование процессов управлениятеория полезности и принятия решенийтеории организации и принятия экономических решенийпринятие политических решенийматематическая теория управляющих системформирование решений в интеллектуальной средемодели рассуждений
Publication based on the results of:
Kapeliushnikov R., / Высшая школа экономики. Серия WP3 "Проблемы рынка труда". 2026. № WP3/2026/02.
The paper is the first attempt in the Russian literature to assess returns to platform employment in the Russian labor market. The theory offers no clear predictions regarding its impact on workers’ earnings: there might be both a premium and a penalty. We distinguish three groups of workers: employees; self-employed using internet-platforms; self-employed not using ...
Added: September 28, 2026
Piliugin L., Antropov A., Lobashev E. et al., Journal of Nuclear Materials 2026 Vol. 632 Article 156876
The effects of dislocations on the mobility of gas nanobubbles pinned to them are considered as novel unex- plored mechanisms of accelerated fission gas release and investigated using classical molecular dynamics of helium bubbles in FCC aluminum. Non-equilibrium methods are developed to calculate the mobility of a pinned bubble both along and across the dislocation ...
Added: September 28, 2026
Kashpurovich I., Oleynichenko A., Stegailov V., Supercomputing Frontiers and Innovations 2026 Vol. 13 No. 1 P. 52–73
We report a high-performance implementation of the resolution-of-the-identity Hartree–Fock method that fully exploits the permutational symmetry of three-center electron repulsion integrals (ERI). The present implementation adopts a hybrid MPI+OpenMP parallelization strategy. Two different algorithmic approaches (with and without the pre-transformation of ERIs) are compared. A custom data layout introduced previously is employed. Designed to efficiently ...
Added: September 28, 2026
Shishkina A., Issaev L., Journal of Globalization Studies 2026 Vol. 17 No. 1 P. 145–156
This article is aimed at discussing the global and regional aspects of Islamic modernization. The study discusses the transformation of ideas about the role of women in the public space by the case study on the North Caucasus. The attitudes of traditional society, the influence of Soviet power, the role of Islamization, both early and ...
Added: September 28, 2026
Teregulov T., Loubenets E. R., / Series Quantum Physics "arXiv". 2026. No. 2609.31472.
We develop a new three-party quantum secret-sharing (QSS) protocol based on a three-qubit W state. This protocol encodes the secret-sequence bits using X gates and employs randomly selected Hadamard operations and measurement bases to generate information and security-test rounds. We evaluate the efficiency of the proposed protocol and analyze its security against an internal adversary ...
Added: September 28, 2026
Silakov D., Системный администратор 2026 С. 84–89
Social media users rarely think about what lies behind the beautiful facade of activity feeds, teeming with photos and video stories. However, the widespread popularity of such platforms generates a huge amount of all sorts of content that needs to be stored, processed quickly, and displayed, and in the era of AI, it also needs ...
Added: September 28, 2026
Prokhorov A., Wei Z., Sang H. et al., Journal of Productivity Analysis 2026 Vol. 65 P. 1–16
The stochastic frontier model (SFM) is widely employed in the analysis of productivity and efficiency, yet strict parametric forms, such as the Cobb-Douglas and Translog functions, are often assumed for modeling production, leading to potential misspecification issues. While semi- and nonparametric SFMs offer greater flexibility, they face challenges in imposing monotonicity and concavity to maintain ...
Added: September 28, 2026
Diskin E., Закон 2026 № 1 С. 92–123
In the January Legal Chronicle our authors comment on several significant legal events that happened at the end of 2025: decisions of the Constitutional Court No. 31-P on the payment of dividends on preferred shares, No. 41-P on VAT, No. 46-P on the fate of seized property in bankruptcy cases; discussion in the EU Council ...
Added: September 28, 2026
Gribkova D. E., Вопросы государственного и муниципального управления 2026 № 3 С. 151–176
Global challenges, economic security risks, sociodemographic and environmental processes, and accelerating technological development are creating a fundamentally new context for Public Administration that demands knowledge-based decision-making. The growing interest in proactive and predictive governance has led to the active use of science and technology foresight. However, the governance of scientific and technological development still faces ...
Added: September 28, 2026
Kossov V. V., НИЦ Инфра-М, 2026.
В книге собраны воспоминания автора, занимавшего высокие государственные посты в управлении экономикой СССР и России, внесшего значительный вклад в отечественную экономическую науку и в подготовку экономистов. В воспоминаниях охвачен протяженный период истории страны, от предвоенных лет и ранее до наших дней. Перед читателем предстают яркие моменты экономического развития страны, процессов принятия решений на высочайшем государственном ...
Added: September 28, 2026
Мухаметшин Р. И., Скрыпник Д. В., Экономическая политика 2026 Т. 21 № 4 С. 94–109
The study quantitatively assesses the impact of sanctions on the Russian economy from 2022 to 2024 by estimating the losses due to sanctions and identifying the factors that shaped GDP during this period. The assessment is based on a vector autoregressive model with exogenous variables (VARX). The model examines GDP and its key components: gross fixed ...
Added: September 27, 2026
Dubravskiy P., Электоральная политика 2024 № 2 С. 2
The paper explores the phenomenon of populism in Latin America as represented by two prominent political figures: Nayib Bukele, President of El Salvador, and Javier Milei, President of Argentina. Both leaders embody different approaches to populism, using charismatic leadership and radical rhetoric to mobilize the population and challenge political elites. The paper analyzes the methods ...
Added: September 27, 2026
Dubravskiy P., Электоральная политика 2025 № 1 С. 1
The paper examines the key factors behind Donald Trump’s victory in the 2024 U.S. presidential election. Special attention is given to sociopolitical shifts in American society, the effectiveness of the Republican campaign, the use of digital political technologies, and strategic outreach to key voter groups in swing states. The research data for the study includes ...
Added: September 27, 2026
Soloshcheva M., Российское китаеведение 2026 Vol. 14 No. 1 P. 6–23
This article examines the conceptualization of Chinese soft power and the implementation
of the PRC’s soft power strategy in Africa. First introduced into academic
discourse by American political scientist Joseph Nye in 1990, the concept was subsequently
adopted and critically re-evaluated by Chinese political theorists, most notably
Wang Huning, Yan Xuetong, Yang Shengping and Zhang Guozuo. The term has ...
Added: September 27, 2026
Guterman A., Jonoska N., Kreines E. et al., Proceedings of the Edinburgh Mathematical Society 2026 Vol. 69 No. 3 P. 1041–1057
We provide four equivalent combinatorial conditions for a simple assembly graph (rigid vertex graph where all vertices are of degree 1 or 4) to have the largest number of Hamiltonian sets of polygonal paths relative to its size. These conditions serve to prove the conjecture that such a maximum, which is equal to 𝐹_(2𝑛+1) −1, ...
Added: September 27, 2026
Qian X., Guan X., Zhang B. et al., Journal of Global Optimization 2026
Inverse quickest path problem on networks ...
Added: September 27, 2026
М.: КДУ, 2026.
В сборник, подготовленный при финансовой поддержке Высшей школы современных социальных наук МГУ им М.В.Ломоносова, вошли статьи участников 2-й Международной научно-практической конференции «Современные проблемы управления: исследования, диагностика, решения», организованной высшей школой современных социальных наук МГУ им. М.В. Ломоносова 9-10 октября 2025 г. в Москве. Авторы статей, вошедших в сборник, являются как опытными исследователями в области менеджмента ...
Added: September 26, 2026
Levashev V., / Series arXiv "math". 2026. No. 2609.06010.
We prove that continuous A-bilinear pairings on the ring of Laurent series that are invariant under continuous automorphisms coincide, up to a constant, with the pairing given by the residue of a differential form over any commutative associative ring with identity. ...
Added: September 24, 2026
Pyatov P. N., Pivovarov P. A., / Series math "arxiv.org". 2026. No. 2609.06274.
We investigate a special ansats that allows for an iterative solution of the constant Yang-Baxter equation. Testing this ansatz, we construct four sequences of the constant R-matrices. In each sequence the R-matrices act on the tensor squares of vector spaces of linearly growing dimensions. Each R-matrix also depends on a single complex parameter.
By analyzing the ...
Added: September 24, 2026
Usvitskiy A., Mizyakov V., / Series "SSRN Working Paper Series". 2026.
Added: September 24, 2026
Medvedev V., / Series arXiv "math". 2026.
We study complete static manifolds with boundary admitting a nowhere-vanishing static potential. Our main result shows that, under a natural lower bound relating the scalar curvature and the boundary mean curvature, a simple static manifold with boundary must in fact have positive scalar curvature, negative boundary mean curvature, and be compact; we also obtain explicit ...
Added: September 19, 2026
Poddiakov A., / Series Social Science Research Network "Social Science Research Network". 2026. No. 7437658.
Clarity of knowledge and reasoning is necessary in many cases. Yet vagueness in scientific thinking related to surprise, curiosity, "ability to engage with not-knowing" (de Freitas) and abductive reasoning is also a crucially important source of scientific creativity which supplements combinatorial logic when dealing with the already known. Starting from studies by C. S. Peirce ...
Added: September 15, 2026
Glutsyuk A., / Series arXiv "math". 2026.
B.Josephson (Nobel Prize, 1973) predicted a tunnelling effect for a system of two superconductors separated by a narrow dielectric (such a system is called Josephson junction): existence of a supercurrent through it and equations governing it. The overdamped Josephson junction is modeled by the family of differential equations on the 2-torus, dθdτ=1ω(cosθ+B+Acosτ), which is known as ...
Added: September 8, 2026
Pochinka O., Shmukler V., / Series math.RT "arXiv:1808.06395 [math.RT]". 2026.
Anosov flows have a long and rich history, firstly motivated by the
study of geodesic flows in negative curvature surface by Anosov and Sinai.
Not every closed manifold admits an Anosov flow for well-known reasons:
the fundamental group of a 3-manifold M admitting an Anosov flow must
have exponential growth, and M must be universally covered by R3. Nevertheless,
there ...
Added: August 31, 2026