一类高阶中立型泛函微分方程正解存在性  

Existence of Positive Solutions for a class of higher Order Neutral Functional Differential Equations

作　　者：刘安[1] 

机构地区：[1]衡阳师范学院数学系,衡阳421008

出　　处：《衡阳师范学院学报》2001年第3期56-62,共7页Journal of Hengyang Normal University

摘　　要：考虑一类高阶中立型泛函微分方程的正解存在性问题 ,给出了存在正解的一个充分条件和存在有界正解的充要条件 。In this paper,we shall consider the existence of positive solutious for a class of n -order neutral functional differential equations.We shall show that sufficient condition for the existence of positive solutions and that sufficient and necessary condition for the existence of bounded positive solutions.These conditions generalize some known results in the literature.

关 键 词：中立型 泛函微分方程 正解 

分 类 号：O175[理学—数学]