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The numbers of periodic solutions of the polynomial differential equation

โœ Scribed by Zhou Zhengxin

Book ID
105662962
Publisher
Springer-Verlag
Year
2004
Tongue
English
Weight
159 KB
Volume
16
Category
Article
ISSN
1598-5865

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On Periodic Solutions of Planar Polynomi
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โœ R. Srzednicki ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 743 KB

We consider the planar equation \(\dot{z}=\sum a_{k, l}(t) z^{k} \bar{z}^{l}\), where \(a_{k, l}\) is a \(T\)-periodic complex-valued continuous function, equal to 0 for almost all \(k, l \in \mathbb{N}\). We present sufficient conditions imposed on \(a_{k,}\), which guarantee the existence of its \