摘要
利用重合度理论研究了一类具两个偏差变元的高阶Lienard型方程周期解存在唯一性,获得了T周期解存在唯一性的新结论,推广和改进了已有文献中的相关结论。
By using the theorem of coincidence degree,existence and uniqueness of periodic solutions for a kind of higher order Lienard equation with two deviating arguments is studied.Some new results for the existence and uniqueness of periodic solutions are obtained,which extend and improve the related reports in the literatures.
出处
《科技通报》
北大核心
2012年第11期11-15,共5页
Bulletin of Science and Technology
关键词
偏差变元
存在性和唯一性
泛函微分方程
周期解
重合度理论
deviating argument
existence and uniqueness
functional differential equation
periodic solution
coincidence degree
