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IMI/Publicaţii/BASM/Ediţii/BASM n.3(85), 2017/

Invariant conditions of stability of unperturbed motion governed by some differential systems in the plane

Authors: Natalia Neagu, Orlov Victor, Popa Mihail

Abstract

Center-affine invariant conditions of the stability of unperturbed motion were determined for differential systems in the plane with polynomial nonlinearities in non-critical cases and for differential systems in the plane with polynomial nonlinearities up to the fourth degree inclusive in critical cases.

Natalia Neagu
Tiraspol State University,
Ion Creang˘ a State Pedagogical University,
Chisinau, Republic of Moldova
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Victor Orlov
Technical University of Moldova,
Institute of Mathematics and Computer Science,
Chisinau, Republic of Moldova
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Mihail Popa
Institute of Mathematics and Computer Science,
Chisinau, Republic of Moldova
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