一类n维中立型泛函微分方程的周期解

Periodic Solution for One Kind of n Dimension Neutral Functional Differential Equations

通过对NFDE周期系统；周期解的讨论，给出了其周期解界的估计式，结合不动点原理研究了下列系统：周期解的存在性，唯一性等问题，得到一些新的结果．

In this paper, throng discussing following NFDEs:we give a boundary estimation of it' s periodic solution. Then we use fixed point principles to study NFDEs:The new results for existence and uniqueness of the periodic Solution are obtained.