摘要
本文论述了一类二阶系统的相轨线方程满足一定条件时，对应的曲线是封闭曲线。给出根据相轨线方程判断微分方程组存在周期解的方法。
This paper discusses a kind of phase orbit equation of system of differential equations. Under some conditions the phase orbit equation determined a family of closed curves.A method by which we can judged that the system of differential equations determined periodical solutions is given.
出处
《河池师专学报》
1999年第4期5-8,共4页
Journal of Hechi Normal College
关键词
非线性微分方程组
相轨线方程
封闭曲线
周期解
初值问题
System of differential equations, Phase orbit equation, Closed curve, Periodical solution
