三种群Volterra差分模型正概周期解的存在唯一性

Existence of Positive Almost Periodic Solutions for a Class of Three-stocks Volterra Difference Model

通过构造离散形式的Liapunov函数研究了一类三种群Volterra差分系统正概周期解的存在性,得到了该差分系统存在正概周期解的一个充分条件.

By means of constructing suitable discrete Liapunov function,a class of three-stocks Volterra difference system is studied.A set of sufficient conditions to guarantee the existence of positive almost periodic solutions is obtained.