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Differentsial'nye Uravneniya, 1973, Volume 9, Number 4, Pages 650–659
(Mi de1867)
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Ordinary Differential Equations
The problem of distinguishing the center and the focus
A. P. Sadovskii V. I. Lenin Belorusskii State University
Received: 18.04.1972
Citation:
A. P. Sadovskii, “The problem of distinguishing the center and the focus”, Differ. Uravn., 9:4 (1973), 650–659
Linking options:
https://www.mathnet.ru/eng/de1867 https://www.mathnet.ru/eng/de/v9/i4/p650
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Statistics & downloads: |
Abstract page: | 106 | Full-text PDF : | 52 |
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