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JOURNALS // Itogi Nauki i Tekhniki. Sovremennaya Matematika i ee Prilozheniya. Tematicheskie Obzory // Archive

Itogi Nauki i Tekhniki. Sovrem. Mat. Pril. Temat. Obz., 2020 Volume 188, Pages 84–105 (Mi into743)

This article is cited in 6 papers

Estimates of solutions in the model of interaction of populations with several delays

M. A. Skvortsova

Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: We consider a system of differential equations with several delays, which describes the interaction of $n$ species of microorganisms. We obtain sufficient conditions for the asymptotic stability of a nontrivial equilibrium state corresponding to the partial survival of populations. We establish estimates of solutions that characterize the rate of stabilization at infinity and indicate estimates of the attraction set of a given equilibrium state. The results are obtained by using the modified Lyapunov–Krasovsky functional.

Keywords: model of interaction of populations, equation with retarded argument, asymptotic stability, estimate of solution, attraction set, modified Lyapunov–Krasovsky functional.

UDC: 517.929.4

MSC: 34K20, 34K60, 92D25

DOI: 10.36535/0233-6723-2020-188-84-105



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