Differentsial'nye Uravneniya
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Differentsial'nye Uravneniya, 1975, Volume 11, Number 2, Pages 390–391 (Mi de2400)  
Short Communications

The maximal number of limit cycles of the system $\dot{y}=-x$, $\dot{x}=y-\sum_{i=0}^2a_i x^{2i+1}$ is equal to two

G. S. Rychkov

Moscow
Full-text PDF (602 kB)
Received: 16.07.1973
Bibliographic databases:
Document Type: Article
UDC: 517.925.12
Language: Russian
Citation: G. S. Rychkov, “The maximal number of limit cycles of the system $\dot{y}=-x$, $\dot{x}=y-\sum_{i=0}^2a_i x^{2i+1}$ is equal to two”, Differ. Uravn., 11:2 (1975), 390–391
Citation in format AMSBIB
\Bibitem{Ryc75}
\by G.~S.~Rychkov
\paper The maximal number of limit cycles of the system $\dot{y}=-x$, $\dot{x}=y-\sum_{i=0}^2a_i x^{2i+1}$ is equal to two
\jour Differ. Uravn.
\yr 1975
\vol 11
\issue 2
\pages 390--391
\mathnet{http://mi.mathnet.ru/de2400}
\mathscinet{https://mathscinet.ams.org/mathscinet-getitem?mr=369803}
\zmath{https://zbmath.org/?q=an:0307.34025}
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  • https://www.mathnet.ru/eng/de/v11/i2/p390
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