摘要
本文对Lienard系统给出了同时包含多个奇点的极限环的存在性的一组充分条件。并证明了2n+1次多项式系统可分别实现同时包含1,2,…,2n+1个奇点的极限环,给出了实现的一般方法。
In this paper, we consider the system x=y-F(x) y=g(x) and give a set of sufficient conditions of the existence of limit cycle including some singular points, and prove that the polynomial system of order 2n+1 x=P_(2n+1)(x, y) y=Q_(2n)+1(x,y) can respectively realize the limit cycle including 1,2,…2n+1 singular points, the general method is given.
出处
《新疆大学学报(自然科学版)》
CAS
1991年第2期19-21,共3页
Journal of Xinjiang University(Natural Science Edition)
关键词
多项式系统
奇点
极限环
singular point
limit cycle
polynomial system