摘要
本文利用重合度理论讨论一类具分布时滞的退化微分系统的周期解存在性,给出了周期解的存在条件.
In this paper the existence of periodic solutions for a class of degenerate differential system with distributed delay is discussed by using coincidence degree theory.Sufficient conditions of the existence of periodic solutions for the system are obtained.
出处
《应用数学》
CSCD
北大核心
2005年第3期476-483,共8页
Mathematica Applicata
基金
安徽省教育厅自然科学基金资助项目(2004KJ028
2003KJ005ZD)
关键词
分布时滞
退化微分系统
周期解
重合度
Distributed delay
Degenerate differential system
Periodic solution
Coincidence degree
