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Командно-личный турнир школьников "Математическое многоборье" 2008-2010
M. :
MCCME, 2012.
Compiler: Ю. В. Тихонов, Sharich V.
Priority areas:
mathematics
Language:
Russian
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
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
Loubenets E. R., / Series arxiv.org "quant-ph". 2026. No. 2607.18050.
In many quantum applications it is important to know whether or not a Bell nonlocal two-qudit state exhibits its nonlocality under correlation scenarios with some given numbers S1,S2≥1 of generalized quantum measurements at two sites. In the present article, we find analytically a new general locality condition sufficient for a nonseparable Werner state with a ...
Added: July 21, 2026
Bolbachan V., / Series math "arxiv.org". 2024.
Chow polylogarithms are some special functions arising in explicit description of the Beilinson regulator map. The most interesting functional equation for this function reflects its vanishing on the boundary in the Bloch's cycle complex. We show that this functional equation formally follows from more simple ones, namely skew-symmetry, functoriality and multiplicativity.
To prove this, we study ...
Added: July 16, 2026
Bolbachan V., / Series math "arxiv.org". 2024.
Let K be a field of characteristic zero. We prove that its motivic cohomology in degree m−1 and weight m is rationally isomorphic to the cohomology of the polylogarithmic complex. This gives a partial extension of A. Suslin theorem describing the indecomposable K3 of a field. ...
Added: July 16, 2026
Panov V., Ryabchenko A., / Series arXiv "stat.ME". 2026. No. 2607.05048.
This paper investigates the problem of statistical inference for a mixture distribution consisting of a discrete and a continuous component, with a particular focus on the class of rational-infinitely divisible distributions. We consider non-parametric estimation of both components of the mixture as well as the quasi-L{é}vy measure, assuming that the mixture belongs to the class ...
Added: July 9, 2026
Konakov V., Kucher D., Mammen E., / Series arXiv "math". 2026. No. 2606.11142v1.
In this paper, we construct strong approximations for discrete-time Markov chains weakly converging to continuous diffusion processes, as well as for their perturbed counterparts. Under the assumption of bounded coefficients, we construct closely coupled versions of these processes on a shared probability space. In particular, for both non-degenerate and degenerate cases, we maximize the probability ...
Added: June 11, 2026
Dorovskiy A., / Series arXiv "math". 2026.
In this paper the structural stability of generic families of vector fields of the PC-HC class on the two-dimensional sphere is proved. A classification of these families up to moderate equivalence in neighborhoods of their large bifurcation supports is presented, based on such invariants as the configuration and the characteristic set. The realization lemma is proved. ...
Added: May 14, 2026
Taletskii D., / Series arXiv "math". 2026.
A vertex subset of a graph is called a \textit{distance-$k$ independent set} if the distance between any two of its distinct vertices is at least $k + 1$. For all $n,k \geq 1$, we determine the minimum possible number of inclusion-wise maximal distance-$k$ independent sets among all $n$-vertex trees. It equals~$n$ if $n \leq k ...
Added: May 1, 2026
Ovcharenko M., / Series arXiv "math". 2026.
We introduce an explicit class of tempered Laurent polynomials in the sense of Villegas and Doran--Kerr in n⩽4 variables including all Landau--Ginzburg models for smooth Fano threefolds with very ample anticanonical class. We check that it contains Landau--Ginzburg models for various Fano fourfolds which are complete intersections in smooth toric varieties and Grassmannians of planes, ...
Added: April 30, 2026
Zlotnik Alexander, / Series arXiv "math". 2026. No. 2602.03481v1.
We deal with the global in time weak solutions to the 1D compressible Navier-Stokes system of equations for large discontinuous initial data and nonhomogeneous boundary conditions of three standard types. We prove the Lipschitz-type continuous dependence of the solution $(\eta,u,\theta)$, in a norm slightly stronger than $L^{2,\infty}(Q)\times L^2(Q)\times L^2(Q)$, on the initial data $(\eta^0,u^0,e^0)$ in a ...
Added: April 18, 2026
Trunin M., Учительская газета 2024 № 7 С. 8–9
В связи с августовским планом Министерства образования и науки ограничить число победителей и призеров перечневых олимпиад РСОШ (российский совет олимпиад школьников), которые без вступительных испытаний могут занимать бюджетные места при поступлении в вуз, в обществе возникла дискуссия. ...
Added: March 11, 2025
Borzykh D., Vakulenko E., Furmanov K. K., М.: Издательская группа URSS, 2024.
Преподавание эконометрики в части практических занятий должно базироваться на трёх китах:
решение задач «вручную», программирование эконометрических процедур, работа с данными на компьютере. Эта книга посвящена третьему «киту».
Пособие подготовлено на основе практических занятий по эконометрике, которые авторы проводили более десяти лет на различных факультетах НИУ ВШЭ. Оно предназначено, в основном, для студентов бакалавриата, обучающихся по экономическим специальностям, а также преподавателей эконометрики. ...
Added: January 10, 2024
Chernenko S., Romanenko K., Образовательная политика 2021 Т. 88 № 4 С. 80–89
In the second part of the study, through the focus of the All-Russian Olympiad of Schoolchildren, we make an attempt to identify the school promoting power: practices of secondary schools in support and encouraging students in the Olympiad movement. The respondents were 61 winners of the Olympiad in different disciplinaries. The main substantive result of ...
Added: September 24, 2021
Chernenko S., Romanenko K., Образовательная политика 2021 Т. 87 № 3 С. 88–98
The secondary school is the main institution for general education training, but the role of schools in preparing students for the intellectual contests (Olympiads) remains unknown. In this study, through the focus of the All-Russian Olympiad of Schoolchildren, we make an attempt to identify the school promoting power: practices of secondary schools in preparing students ...
Added: September 23, 2021
Borzykh D., ЛЕНАНД, 2021.
Пособие предназначено для проведения практических занятий по курсу «Математическая статистика» для студентов экономических специальностей. Оно также может быть использовано при самостоятельном изучении предмета благодаря очень большому количеству подробно решенных задач.
В предлагаемом пособии содержатся задачи различного уровня сложности. Однако основной акцент сделан на задачах средней сложности. Это сделано намеренно, с тем, чтобы побудить студентов к самостоятельному решению задач: слишком простые ...
Added: January 30, 2021
Borzykh D., ЛЕНАНД, 2021.
Пособие предназначено для проведения практических занятий по курсу «Теория вероятностей» для студентов экономических специальностей. Оно также может быть использовано при самостоятельном изучении предмета благодаря очень большому количеству подробно решенных задач.
В предлагаемом пособии содержатся задачи различного уровня сложности. Однако основной акцент сделан на задачах средней сложности. Это сделано намеренно, с тем, чтобы побудить студентов к самостоятельному решению задач: слишком простые ...
Added: January 30, 2021
Borzykh D., Vakulenko E., Furmanov K. K., Издательская группа URSS, 2021.
Преподавание эконометрики в части практических занятий должно базироваться на трёх китах:
решение задач «вручную», программирование эконометрических процедур, работа с данными на компьютере. Эта книга посвящена третьему «киту».
Пособие подготовлено на основе практических занятий по эконометрике, которые авторы проводили более десяти лет на различных факультетах НИУ ВШЭ. Оно предназначено, в основном, для студентов бакалавриата, обучающихся по экономическим специальностям, а также преподавателей эконометрики. ...
Added: August 25, 2020
Леонтьев В. Е., Евстафьева И. И., Makarova V. A., СПб.: Санкт-Петербургский государственный экономический университет, 2018.
The practical course on the "Corporate Finance" contains control questions, blitz-polls, tests, a set of tasks; approximate subject of term papers. It is intended for classroom and independent work of students of all forms of study in the direction of preparation of the bachelor's degree 38.03.01 "Economics", 38.03.02 "Management" and the direction of preparation of ...
Added: March 18, 2019
Sharich V., В кн.: Проблемы современного математического образования.: М.: МПГУ, 2017. С. 99–112.
Олимпиады – эффективное средство поиска и отбора талантливой молодёжи и её раннего погружения в науку. В последнее время говорят об определённых кризисных явлениях в олимпиадном движении; эти явления будут ниже проанализированы. ...
Added: December 10, 2018