Proceedings of the International Geometry Center

ISSN-print: 2072-9812
ISSN-online: 2409-8906
ISO: 26324:2012
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On functional moduli of surface flows

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Vladislav Kruglov
http://orcid.org/0000-0003-4661-0288
Olga Pochinka
http://orcid.org/0000-0002-6587-5305
Galina Talanova
http://orcid.org/0000-0002-4743-4055

Abstract

Currently, an complete topological classification has been obtained with respect to the topological equivalence of Morse-Smale flows, [9, 7], as well as their generalizations of Ω-stable flows on closed surfaces, [4]. Some results on topological conjugacy classification for such systems are also known. In particular, the coincidence of the classes of topological equivalence and conjugacy of gradient-like flows (Morse-Smale flows without periodic orbits) was established in [3]. In the classical paper [8], it was proved that in the presence of connections (coincidence of saddle separatrices), the topological equivalence class of a Ω-stable flow splits into a continuum of topological conjugacy classes (has moduli). Obviously, each periodic orbit also generates at least one modulus associated with the period of that orbit. In the present work, it was established that the presence of a cell in a flow bounded by two limit cycles leads to the existence of an infinitely many stability moduli. In addition, a criterion for the topological conjugation of flows on such cells was found.

Keywords:
non-singular flow, Morse-Smale flow, conjugacy, equivalence, limit cycle

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How to Cite
Kruglov, V., Pochinka, O., & Talanova, G. (2020). On functional moduli of surface flows. Proceedings of the International Geometry Center, 13(1), 49-60. https://doi.org/10.15673/tmgc.v13i1.1714
Section
Papers
Author Biographies

Vladislav Kruglov, National Research University Higher School of Economics

International Laboratory of Dynamical Systems and Applications, Research Assistant

Olga Pochinka, National Research University Higher School of Economics, Russian Federation

International Laboratory of Dynamical Systems and Applications, Head of the Laboratory

Galina Talanova, National Research University Higher School of Economics, Russian Federation

Student