摘要
讨论几类具有分布时滞的Volterra积分微分方程正周期解的存在性和多解性问题.利用锥不动点定理,分别获得了这类问题存在正周期解和存在至少两个正周期解的充分条件,推广和改进了已有文献的相关结果.
The existence and multiplicity of the positive periodic solutions for some volterra integro-differenfial equations with distributed delays are discussed. By using the cone fixed-point theorem, some sufficient conditions for the existence and multiplicity of positive periodic solutions are obtained. The results extend and improve the related reports in the literatures.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第1期65-69,共5页
Journal of Sichuan Normal University（Natural Science）
基金
国家自然科学基金(10671133)资助项目
关键词
VOLTERRA积分微分方程
正周期解
锥不动点定理
存在性
多解性
Volterra integro-differential equations
Positive periodic solutions
Fixed point theorem
Existence
Multiplicity solutions
