摘要
本文采用对系统具体构造一个Liapunov函数的方法,研究了系统的周期解问题,可使问题的研究变得非常简单。
In the present paper, the author constructs concrete Liapunov's functions for two systems separately and makes use of these functions to deal with the problems of periodic solution for systems. This is an advanced technique. It can simplify the problems to a great extent.
关键词
常微分方程
稳定性
周期解
函数
Ordinary difference equation
Stability
Periodic solution
