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 Mat. Zametki, 2009, Volume 85, Issue 3, Pages 382–394 (Mi mz4115)

Instability of Closed Invariant Sets of Semidynamical Systems. Method of Sign-Constant Lyapunov Functions

B. S. Kalitin

Belarusian State University

Abstract: In the paper, a reduction principle for the instability property of a closed positively invariant set $M$ for semidynamical systems is proved. The fact that the result is untraditional is stressed by the assumption on the existence of a closed positively invariant set with respect to which the set $M$ has the attraction property. The corresponding instability theorem of the method of sign-constant Lyapunov functions is presented. The assertion thus obtained generalizes the well-known Chetaev and Krasovskii theorems for systems of ordinary differential equations, theorems on the instability with respect to some of the variables, and also the Shimanov and Hale theorems for systems with retarded argument. Illustrating examples are presented.

Keywords: semidynamical system, positively invariant set, instability, sign-constant Lyapunov function, global asymptotic stability, attracting set, reduction principle

DOI: https://doi.org/10.4213/mzm4115

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English version:
Mathematical Notes, 2009, 85:3, 374–384

Bibliographic databases:

UDC: 517.938:925
Revised: 20.06.2008

Citation: B. S. Kalitin, “Instability of Closed Invariant Sets of Semidynamical Systems. Method of Sign-Constant Lyapunov Functions”, Mat. Zametki, 85:3 (2009), 382–394; Math. Notes, 85:3 (2009), 374–384

Citation in format AMSBIB
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• http://mi.mathnet.ru/eng/mz4115
• https://doi.org/10.4213/mzm4115
• http://mi.mathnet.ru/eng/mz/v85/i3/p382

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Citing articles on Google Scholar: Russian citations, English citations
Related articles on Google Scholar: Russian articles, English articles

This publication is cited in the following articles:
1. B. S. Kalitin, “Lyapunov Direct Method for Semidynamical Systems”, Math. Notes, 100:4 (2016), 550–560
2. B. S. Kalitine, “On solving the problems of stability by Lyapunov's direct method”, Russian Math. (Iz. VUZ), 61:6 (2017), 27–36
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