?
О динамике эндоморфизмов двумерного тора с одномерными базисными множествами
Динамические системы. 2015. Т. 5. № 1-2. С. 57-60.
Kurenkov E.
In this paper we consider endomorphisms given on 2-manifold satisfying axiom A. F. Przytycki obtained necessary and sufficient conditions for $\Omega$-stability of such endomorphisms. He also showed that in every neighborhood of an omega-unstable endomorphism a countable number of pairwise omega non-conjugate endomorphisms exists. Here we introduce an example of one-parametric family of endomorphisms of 2-torus that are pairwise topologically non-conjugate but $\Omega$-conjugate.
Publication based on the results of:
Grines E. A., Pochinka O., Динамические системы 2013 Vol. 3 No. 31 P. 185-200
In present paper we consider a class of 3-dimensional diffeomorphisms with finite hyperbolic chain recurrent set and finite number of orbits of heteroclinic tangencies. We prove that necessary conditions for topological conjugacy of two diffeomorphisms from this class is a generalization of moduli of stability for analogous two-dimensional systems.} ...
Added: August 10, 2014
Митрякова Т. М., Pochinka O., Журнал Средневолжского математического общества 2014 Т. 16 № 2 С. 76-79
In present paper we consider a class of 3-manifolds' diffeomorphisms lying on the border of a set of gradient-like systems and different from the last not more than one tangencies' orbits of two-dimensional separatrices. It is proved that for studying diffeomorphisms necessary and sufficient condition for topological conjugacy of two diffeomorphisms from this class is ...
Added: August 9, 2014
Kurenkov E., Рязанова К. А., Динамические системы 2017 Т. 7 № 2 С. 113-118
В настоящей работе рассматриваются, периодические сдвиги на $n$-мерном торе, и для двух топологически сопряженных сдвигов исследуется множество сопрягающих их гомеоморфизмов. Из результатов Я.~Нильсена~\cite{Ni} следует, что для периодических гомеоморфизмов двумерного тора таких, что все точки имеют один период, период является полным инвариантом топологической сопряженности. В настоящей работе исследуется вопрос, когда два периодических сдвига на $n$-мерном торе ...
Added: November 15, 2017
Golikova L., Pochinka O., Огарёв-Online 2020 № 13 С. 1-11
The first section of this article presents the basic definitions of the topic, the second chapter focuses on structurally stable circle transformations, and the last chapter is dedicated to suspensions on model transformation of S1. The basic results of the research are theorem 3.1 about equivalence of suspensions on model diffeomorphisms and statement 4.1 that ...
Added: November 23, 2020
Gurevich E., Макаров А. А., Труды Средневолжского математического общества 2020 Т. 22 № 3 С. 261-267
We consider a class $H(\mathbb{R}^n)$ of orientation preserving homeomorphisms of Euclidean space $\mathbb{R}^n$ such that for any homeomorphism $h\in H(\mathbb{R}^n)$ and for any point $x\in \mathbb{R}^n$ a condition $\lim \limits_{n\to +\infty}h^n(x)\to O$ holds, were $O$ is the origin. It is provided that for any $n\geq 1$ an arbitrary homeomorphism $h\in H(\mathbb{R}^n)$ is topologically conjugated with ...
Added: September 14, 2020
Gurevich E., Смирнова А. С., Динамические системы 2018 Т. 2 № 15 С. 159-172
We consider a class $G$ of Morse-Smale diffeomorphisms on the sphere $S^n$ of dimension $n\geq 4$ such that invariant manifolds of different saddle periodic points of any diffeomorphisms from $G$ have no intersection. Dynamics of an arbitrary diffeomorphism $f\in G$ can be represented as ``sink-source'' dynamics where the ``sink'' $A_f$ (the ``source'' $R_f$) is the ...
Added: November 2, 2018
Pochinka O., Левченко Ю. А., Grines V., Нелинейная динамика 2014 Т. 10 № 1 С. 17-33
Consider the class of diffeomorphisms of three-dimensional manifolds and satisfying aksiomA by Smale on the assumption that the non-wandering set of each diffeomorphism consists of surface two-dimensional basic sets. We find interrelations between the dynamics of such a diffeomorphism and the topology of the ambient manifold. Also found that each such diffeomorphism is Ω-conjugate to ...
Added: August 16, 2014
Grines V., Pochinka O., Шиловская А. А., Труды Средневолжского математического общества 2016 Т. 18 № 1 С. 17-26
In this paper we consider the class G of A-dieomorphisms f , dened on a closed 3-manifold M3 . The nonwandering set is located on nite number of pairwise disjoint f -invariant 2-tori embedded in M3 . Each torus T is a union of $W^u_{B_T}\cup W^u_{\Sigma_T}$, либо $W^s_{B_T}\cup W^s_{\Sigma_T}$, where $B_T$ -- dimensional basic set exteriorly situated on T and T ...
Added: June 8, 2016
Pochinka O., Митрякова Т. М., Математические заметки 2013 Т. 93 № 6 С. 902-919
В настоящей статье разработан метод построения каскадов на поверхностях, позволяющих моделировать негрубые дискретные динамические системы с конечным числом орбит гетероклинического касания и заданными модулями топологической сопряженности ...
Added: March 25, 2014
Nozdrinov A., Починка А. И., Журнал Средневолжского математического общества 2023 Т. 25 № 1 С. 531-541
In this paper we consider gradient-like Morse-Smale diffeomorphisms defined on the three-dimensional sphere S 3 . For such diffeomorphisms, a complete invariant of topological conjugacy was obtained in the works of C. Bonatti, V. Grines, V. Medvedev, E. Pecu. It is an equivalence class of a set of homotopically non-trivially embedded tori and Klein bottles ...
Added: March 22, 2023
О. В. Починка, Е. А. Таланова, Д. Д. Шубин, Математический сборник 2023 Т. 214 № 8 С. 94-107
It is known that the topological conjugacy of gradient-like 3-difepheromorphisms with a single saddle point is completely determined by the equivalence of Hopf knots on the manifold of S^2 × S^1, which are the projections of a one-dimensional saddle separatics in the basin of node point, and the ambient manifold for all such diffeomorphisms is ...
Added: July 27, 2023
Kruglov V., Malyshev D., Pochinka O. et al., Discrete and Continuous Dynamical Systems 2020
In this paper, we study gradient-like flows without heteroclinic intersections on n-sphere up to topological conjugacy. We prove that such a flow is completely defined by a bi-colour tree corresponding to a skeleton formed by co-dimension one separatrices. Moreover, we show that such a tree is a complete invariant for these flows with respect to ...
Added: October 17, 2019
Kruglov V., Журнал Средневолжского математического общества 2018 Т. 20 № 4 С. 419-428
In 1978 J. Palis invented continuum topologically non-conjugate systems in a neighbourhood of a system with a heteroclinic contact (moduli). W. de Melo and С. van Strien in 1987 described a diffeomorphism class with a finite number of moduli: a chain of saddles taking part in the heteroclinic contact of such diffeomorphism includes not more ...
Added: November 21, 2018
Kruglov V., Malyshev D., Pochinka O. et al., Regular and Chaotic Dynamics 2020 Vol. 25 No. 6 P. 716-728
In this paper, we study gradient-like flows without heteroclinic intersections on n-sphere up to topological conjugacy. We prove that such a flow is completely defined by a bi-colour tree corresponding to a skeleton formed by co-dimension one separatrices. Moreover, we show that such a tree is a complete invariant for these
flows with respect to the ...
Added: November 15, 2020
Kruglov V., Pochinka O., Journal of Mathematical Sciences 2020 Vol. 250 P. 22-30
We study gradient-like flows with no heteroclinic intersections on an n-dimensional (n ≥ 3) sphere from the point of view of topological conjugacy. We prove that the topological conjugacy class of such a flow is completely determined by the bicolor tree corresponding to the frame of separatrices of codimension 1. We show that for such ...
Added: October 8, 2020
Safonov K., Малкин М. И., Journal of Physics: Conference Series 2018 Vol. 990 P. 012007
For onedimensional piecewise monotone discontionuous maps without periodic points, the 1-conformal measures are constructed and, as a corollary, semiconjugacy to piecewise linear models of constant (in absolute value) slope is obtained. It turns out that for generalized interval exchange transformations, the constructed semiconjugacy is, in fact, conjugacy . ...
Added: October 31, 2020
Kotelnikova M. V., Aistov A., Вестник Нижегородского университета им. Н.И. Лобачевского. Серия: Социальные науки 2019 Т. 55 № 3 С. 183-189
The article describes a method that allows to improve the content of disciplines of the mathematical cycle by dividing them into invariant (general) and variable parts. The invariants were identified for such disciplines as «Linear algebra», «Mathematical analysis», «Probability theory and mathematical statistics» delivered to Bachelors program students of economics at several universities. Based on ...
Added: January 28, 2020
Borzykh D., ЛЕНАНД, 2021
Книга представляет собой экспресс-курс по теории вероятностей в контексте начального курса эконометрики. В курсе в максимально доступной форме изложен тот минимум, который необходим для осознанного изучения начального курса эконометрики. Данная книга может не только помочь ликвидировать пробелы в знаниях по теории вероятностей, но и позволить в первом приближении выучить предмет «с нуля». При этом, благодаря доступности изложения и небольшому объему книги, ...
Added: February 20, 2021
В. Л. Попов, Математические заметки 2017 Т. 102 № 1 С. 72-80
Мы доказываем, что аффинно-треугольные подгруппы являются борелевскими подгруппами групп Кремоны. ...
Added: May 3, 2017
Красноярск : ИВМ СО РАН, 2013
Труды Пятой Международной конференции «Системный анализ и информационные технологии» САИТ-2013 (19–25 сентября 2013 г., г.Красноярск, Россия): ...
Added: November 18, 2013
Min Namkung, Younghun K., Scientific Reports 2018 Vol. 8 No. 1 P. 16915-1-16915-18
Sequential state discrimination is a strategy for quantum state discrimination of a sender’s quantum
states when N receivers are separately located. In this report, we propose optical designs that can
perform sequential state discrimination of two coherent states. For this purpose, we consider not
only binary phase-shifting-key (BPSK) signals but also general coherent states, with arbitrary prior
probabilities. Since ...
Added: November 16, 2020
Grines V., Gurevich E., Pochinka O., Russian Mathematical Surveys 2017 Vol. 71 No. 6 P. 1146-1148
In the paper a Palis problem on finding sufficient conditions on embedding of Morse-Smale diffeomorphisms in topological flow is discussed. ...
Added: May 17, 2017
Okounkov A., Aganagic M., Moscow Mathematical Journal 2017 Vol. 17 No. 4 P. 565-600
We associate an explicit equivalent descendent insertion to any relative insertion in quantum K-theory of Nakajima varieties.
This also serves as an explicit formula for off-shell Bethe eigenfunctions for general quantum loop algebras associated to quivers and gives the general integral solution to the corresponding quantum Knizhnik Zamolodchikov and dynamical q-difference equations. ...
Added: October 25, 2018
Danilov B.R., Moscow University Computational Mathematics and Cybernetics 2013 Vol. 37 No. 4 P. 180-188
The article investigates a model of delays in a network of functional elements (a gate network) in an arbitrary finite complete basis B, where basis elements delays are arbitrary positive real numbers that are specified for each input and each set of boolean variables supplied on the other inputs. Asymptotic bounds of the form τ ...
Added: December 2, 2019