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

Dokl. RAN. Math. Inf. Proc. Upr., 2022 Volume 506, Pages 25–29 (Mi danma292)

This article is cited in 5 papers

MATHEMATICS

Examples of differential systems with contrasting combinations of Lyapunov, Perron, and upper-limit properties

A.A. Bondarev, I. N. Sergeev

Lomonosov Moscow State University

Abstract: A number of examples of systems of differential equations are given that have, in a sense, opposite properties of stability or instability of various types: Lyapunov, Perron, and upper-limit. Specifically, all nonzero solutions of one of these systems tend to zero (with unlimited growth of time), nevertheless moving away from it at least once at a specific distance common for all the solutions. In another system, all nonzero solutions starting in a fixed neighborhood of zero tend to infinity in norm, while the other solutions, on the contrary, tend to zero.

Keywords: differential system, Lyapunov stability, Perron stability, upper-limit stability, autonomous systems, nonlinear systems, asymptotic properties of solutions.

UDC: 517.925.51

Presented: V. V. Kozlov
Received: 17.05.2022
Revised: 24.06.2022
Accepted: 26.07.2022

DOI: 10.31857/S2686954322050058


 English version:
Doklady Mathematics, 2022, 106:2, 322–325

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© Steklov Math. Inst. of RAS, 2025