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Differentsial'nye Uravneniya, 1968, Volume 4, Number 4, Pages 639–645
(Mi de332)
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Certain tests for the existence and absence of closed trajectories of a certain system of differential equations
N. I. Avdonin Gor'kii State University
Received: 22.11.1966
Citation:
N. I. Avdonin, “Certain tests for the existence and absence of closed trajectories of a certain system of differential equations”, Differ. Uravn., 4:4 (1968), 639–645
Linking options:
https://www.mathnet.ru/eng/de332 https://www.mathnet.ru/eng/de/v4/i4/p639
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