摘要
本文考虑Lienard方程x”十f(x)x’+g(x)=e(t),我们得到:当且时,对于任意周期或概周期。数e(t),它有周期或概周期解.而对于Lienard方程x”+f(x)x’+cx=e(t),我们得到:当c>0且时,对于任意周期、或概周期函数e(t),它有周期或概周期解.
We consider Lienard equation X' + f(x)x' + g(x) =e(t) and obtain that if and for any periodic function or almost periodic function e(t) it has a periodic solution or almost periodic solution. For Lienard equation X' +f(x)x' + ex = e(t), we obtain that if and for any periodic function or almost periodic function e(t) it has a periodic solution or an almost periodic solution.
出处
《数学学报(中文版)》
SCIE
CSCD
北大核心
1996年第3期314-318,共5页
Acta Mathematica Sinica:Chinese Series
关键词
LIENARD方程
周期解
概周期解
存在性
Lienard equation, almost periodic,exponential dichotomy, uniformly asymptotically stable solutions