具偏差变元高阶中立型微分方程的周期解

Existence of Periodic Solutions for Higher Order Functional Differential Equation with Deviating Arguments

利用重合度理论研究了一类具偏差变元高阶中立型泛函微分方程周期解的存在性。获得了该方程存在周期解的两个充分性结果,推广和改进了已有文献中的相关结论。

By using the theorem of coincidence degree,existence of periodic solutions for a class of higher order neutral functional differential equation with deviating arguments is studied.Two sufficient conditions for the existence of periodic solutions are obtained.The results have extend and improved the related reports in the literatures.