一类时滞泛函微分方程三个正周期解的存在性(英文)  

Existence of three positive periodic solutions for a class of functional differential equation with delays

作　　者：邵远夫[1] 

机构地区：[1]贵州师范大学数学与计算机科学学院,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2010年第2期63-65,68,共4页Journal of Guizhou Normal University：Natural Sciences

基　　金：supported by Foundation of Educational Department of Guizhou Province (20090038)

摘　　要：运用Leggett-Williams不动点定理,讨论得到了一类时滞微分方程存在三个正周期解的充分条件.By employing Leggett-WiUiams fixed point theorem, sufficient conditions ensuring the existence of three periodic solutions for a class of functional differential equation with impulse are established.

关 键 词：不动点定理 泛函微分方程 周期解 时滞 

分 类 号：O175[理学—数学]