摘要
利用重合度理论,研究了一类具偏差变元高阶L ienard型方程周期解的存在性,获得了该方程至少存在一个周期解的充分条件.
Existence of periodic solutions for higher order functional differential equation is consider, by using the theorem of coincidence degree, the sufficient conditions for its there being at least a T-periodic solution is obtained.
出处
《纯粹数学与应用数学》
CSCD
北大核心
2006年第1期108-110,117,共4页
Pure and Applied Mathematics
关键词
高阶
泛函微分方程
周期解
重合度理论
higher order, functional differential equation, periodic solution, coincidence degree
