摘要
本文研究了一阶非线性泛函微分方程的周期解,得到了周期解存在唯一的一些充分条件,推广和改进了这方面的已有结果。
The paper is concerned with the periodic solutions of first - order nonlinear functional differential equations, and some sufficient conditions of the existence of the periodic solutions are obtained. It extends and improves some well - known results.
出处
《数学理论与应用》
2008年第1期114-116,共3页
Mathematical Theory and Applications
基金
湖南省自然科学基金(06JJ30024)资助项目
关键词
非线性泛函微分方程
周期解
偏差
迭合度
Nonlinear Functional Differential Equations Infinite deviating arguments Periodic solutions Coincidence degree
