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JOURNALS // Doklady Rossijskoj Akademii Nauk. Mathematika, Informatika, Processy Upravlenia // Archive

Dokl. RAN. Math. Inf. Proc. Upr., 2023 Volume 513, Pages 9–14 (Mi danma410)

This article is cited in 1 paper

MATHEMATICS

On attractors of Ginzburg–Landau equations in domain with locally periodic microstructure. Subcritical, critical and supercritical cases

K. A. Bekmaganbetovab, A. A. Tolemisbc, V. V. Chepyzhovd, G. A. Chechkinbef

a Lomonosov Moscow State University, Kazakhstan Branch, Astana, Kazakhstan
b Institute of Mathematics and Mathematical Modeling, Almaty, Kazakhstan
c Eurasian National University named after L.N. Gumilyov, Astana, Kazakhstan
d Institute for Information Transmission Problems of the Russian Academy of Sciences (Kharkevich Institute), Moscow, Russia
e Institute of Mathematics with a Computer Center – a division of the Ufa Federal Research Center of the Russian Academy of Sciences, Ufa, Russian Federation
f Lomonosov Moscow State University, Moscow, Russian Federation

Abstract: In the paper we consider a problem for complex Ginzburg–Landau equations in a medium with locally periodic small obstacles. It is assumed that on the obstacle surface one can have different conductivity coefficients. We prove that the trajectory attractors of this system converge in a certain weak topology to the trajectory attractors of the homogenized Ginzburg–Landau equations with an additional potential (in the critical case), without the additional potential (in the subcritical case) in a medium without obstacles, or simply disappear (in the supercritical case).

Keywords: attractors, homogenization, Ginzburg–Landau equations, nonlinear equations, weak convergence, perforated domain, rapidly oscillating terms.

UDC: 517.957

Presented: V. V. Kozlov
Received: 30.03.2023
Revised: 02.07.2023
Accepted: 17.08.2023

DOI: 10.31857/S2686954323600180


 English version:
Doklady Mathematics, 2023, 108:2, 346–351

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© Steklov Math. Inst. of RAS, 2026