Local bifurcations of critical periods for quartic Lienard equations with quintic damping

被引:2
|
作者
Li Hongwei [1 ]
机构
[1] Linyi Univ, Sch Sci, Linyi 276005, Shandong, Peoples R China
关键词
Lienard system; center; isochronous center; bifurcation of critical periods; CLASSIFICATION; CENTERS;
D O I
10.1186/1687-1847-2012-24
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this article, we study the local bifurcation of critical periods near a nonde-generate center of the quartic Li,nard equation with quintic damping and prove that at most two local critical periods can be produced from either a weak center of finite order or the isochronous center. MSC: 34C05; 34C07.
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页数:9
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