The Center and the Fine Focus for a Class of Quartic Polynomial Poincare Equations

被引：2
|
作者：
TIAN De-sheng
机构：
来源：
Wuhan University Journal of Natural Sciences | 2004年 / 06期
关键词：
quartic polynomial Poincare equation; center; fine focus; order;
D O I：
暂无
中图分类号：
O174.14 [多项式理论];
学科分类号：
070104 ;
摘要：
We study a class of quartic polynomial Poincare equations by applying a recurrence formula of focal value. We give the necessary and sufficient conditions for the origin to be a center, and prove that the order of fine focus at the origin for this class of equations is at most 6.
引用
收藏
页码：867 / 870
页数：4
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