Method of additional functions in stability theory for nonautonomous systems of differential equations

Authors

  • A.M. Kovalev
  • V.N. Nespirnyy

DOI:

https://doi.org/10.15407/dopovidi2014.08.020

Keywords:

additional functions, nonautonomous systems, stability theory

Abstract

The method of additional functions in stability theory is expanded to nonautonomous systems. It has became possible due to a generalization of the method of invariant relations for this class of systems. The theorem of partial asymptotic stability is proved, and the illustrative example is considered.

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References

Lyapunov A. M. The general problem of stability of motion, Moscow; Leningrad: Gostekhizdat, 1950 (in Russian); Lyapunov A. M., Collected works, Vol. 2, Moscow; Leningrad: Izd-vo AN USSR, 1956 (in Russian).

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Kovalev A. M., Suykov A. S. Dopov. Nac. akad. nauk Ukr., 2008, No 12: 22–27 (in Russian).

Kovalev A. M. Mekhanika tverdogo tela, 2009, Iss. 39: 3–28 (in Russian).

Kovalev A. M. The theory of instability: from Lyapunov to Chetaev to the present day. In: Analytical mechanics, sustainability and management, Vol. 5, Kazan: Izd-vo Kazan. gos. tekhn. un-ta, 2012, 26–39 (in Russin).

Kovalev A. M., Gorr G. V., Nespirnyy V. N. Dopov. Nac. akad. nauk Ukr., 2014, No 2: 13–19 (in Russian).

Published

01.03.2025

How to Cite

Kovalev, A., & Nespirnyy, V. (2025). Method of additional functions in stability theory for nonautonomous systems of differential equations . Reports of the National Academy of Sciences of Ukraine, (8), 20–27. https://doi.org/10.15407/dopovidi2014.08.020