摘要
利用重合度定理讨论了一类具有偏差变元的高阶泛函微分方程的2π周期解的存在性,得到了一个充分条件.
In this paper,the theory of coincidence degree is used to study the existence of the 2π-periodic solutions for a class of high order functional differential equations with partial difference variables and a sufficient condition is obtained.
出处
《广西师范学院学报（自然科学版）》
2009年第2期16-20,共5页
Journal of Guangxi Teachers Education University(Natural Science Edition)
关键词
偏差变元
泛函微分方程
周期解
重合度
partial difference variables
functional differential equation
periodic solution
coincidence degree
