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Differentsial'nye Uravneniya, 1991, Volume 27, Number 11, Pages 2001–2005 (Mi de7657)  
Short Communications

A criterion for the coexistence of a center and a focus of the equation $y'=(x+\lambda y+Q_3)/(-y+\lambda x+P_3)$

N. L. Shcheglova

V. I. Lenin Belorusskii State University
Full-text PDF (416 kB)
Received: 29.11.1990
Bibliographic databases:
Document Type: Article
UDC: 517.925.12
Language: Russian
Citation: N. L. Shcheglova, “A criterion for the coexistence of a center and a focus of the equation $y'=(x+\lambda y+Q_3)/(-y+\lambda x+P_3)$”, Differ. Uravn., 27:11 (1991), 2001–2005
Citation in format AMSBIB
\Bibitem{Shc91}
\by N.~L.~Shcheglova
\paper A criterion for the coexistence of a center and a focus of the equation $y'=(x+\lambda y+Q_3)/(-y+\lambda x+P_3)$
\jour Differ. Uravn.
\yr 1991
\vol 27
\issue 11
\pages 2001--2005
\mathnet{http://mi.mathnet.ru/de7657}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1199226}
\zmath{https://zbmath.org/?q=an:0744.34033}
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  • https://www.mathnet.ru/eng/de/v27/i11/p2001
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