具时滞状态依赖差分方程多周期解的存在性

Existence of Multiple Positive Periodic Solutions for Difference Equations with State-dependent Delays

本文利用锥不动点定理,得到一类具时滞状态依赖差分方程多周期解的存在性的充分条件,且我们的结果推广和改进了原有的结果。

By using a fixed point theorem in cones, sufficient conditions are obtained for the existence of multiple positive periodic solutions for a class of difference equations with state - dependent delays. Our rusults extend and improve some previous results.