Centers and Isochronous Centers of Liénard Systems

被引：0
作者：
V. V. Amel’kin
A. E. Rudenok
机构：
[1] Belarusian State University,
来源：
Differential Equations | 2019年 / 55卷
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D O I：
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摘要：
For holomorphic Liénard equations, necessary and sufficient conditions for the existence of a center and an isochronous center are obtained without calculating the focus quantities and the isochronicity constants.
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页码：283 / 293
页数：10
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