具比例依赖和时滞的非自治捕食系统的正周期解

Positive periodic solution to nonautonomous predator-prey system with ratio-dependence

利用重合度理论中的延拓定理,研究了一类具比例依赖和在功能性反应过程中的具时滞现象的非自治捕食周期系统,获得了正周期解的存在性。

Using a continuation theorem based on coincidence degree theory, we investigated a nonautonomous predater-prey periodic system with ratio-dependence and time delay during the process of the functional response and obtained existence of positive periodic solution.