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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2019 Volume 59, Number 7, Pages 1184–1200 (Mi zvmmf10925)

This article is cited in 8 papers

Existence and stability of a front-type periodic solution of a two-component system of parabolic equations

A. A. Mel'nikova

Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991 Russia

Abstract: A periodic front-type solution of a singularly perturbed system of parabolic equations is considered. The system can be considered as a mathematical model describing a sharp change in the physical characteristics of spatially inhomogeneous media. Such models are used to describe processes in ecology, biophysics, chemical kinetics, combustion physics, and other fields. The existence of a front-type solution is proved, and the asymptotic stability of a periodic solution is established. An algorithm for constructing an asymptotic approximation of the solution is described.

Key words: periodic solution, internal transition layer, stability, singular perturbation.

UDC: 519.33

Received: 14.06.2018
Revised: 10.02.2019
Accepted: 11.03.2019

DOI: 10.1134/S0044466919070111


 English version:
Computational Mathematics and Mathematical Physics, 2019, 59:7, 1131–1147

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