摘要
联合运用Krasnoselskii不动点定理和Avery-Henderson不动点定理研究一类泛函微分方程的多重正周期解的存在性,获得了存在多重正周期解的充分条件.
In this paper, by combining the Krasnoselskii fixed point theorem with the Avery-Henderson fixed point theorem ,we investigate the existence of multiple positive periodic solutions of a class of functional differential equations. Some sufficient conditions for the existence of multiple positive periodic solutions are obtained.
出处
《生物数学学报》
2013年第1期8-22,共15页
Journal of Biomathematics
基金
Supported by Natural Science Foundation of Education Department of Anhui Province(KJ2008B236)
关键词
泛函微分方程
周期解
不动点定理
Functional differential equations
Periodic solution
Fixed pointtheorem
