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The number of periodic solutions of the second kind to the differential equation $\ddot{\varphi}-f_1(\varphi)\dot{\varphi}-f_0(\varphi)=0$
G. I. Shilova Gor'kii State University
Received: 28.03.1966
Citation:
G. I. Shilova, “The number of periodic solutions of the second kind to the differential equation $\ddot{\varphi}-f_1(\varphi)\dot{\varphi}-f_0(\varphi)=0$”, Differ. Uravn., 3:10 (1967), 1682–1691
Linking options:
https://www.mathnet.ru/eng/de236 https://www.mathnet.ru/eng/de/v3/i10/p1682
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