偶数阶时滞微分方程的单调解

Monotone Solutions of Even-Order Delay Differential Equations

中文关键词:  时滞微分方程  非负解  单调正解

英文关键词:delay differetial equation  nonnegative solution  monotone positive solution

中文摘要:

      使用一种新技巧,研究了两类偶数阶时滞微分方程的单调正解的存在任,得到了方程存在单调正解的一些充要条件和充分条件。

英文摘要:

      This paper deals with the existence of monotone solutions of even-order delay dif ferntial equations. Some necessary and sufficent conditions and sufficient conditions for the equations to have monotone positive solutions arc obtained.