Existence of Per Periodic iodic Solution of Predator-Prey System with Smith Growth for Prey and Stage Structure for Predator

摘要

In this paper, we study the existence of positive periodic solutions for a time delay predator-prey system with smith growth for prey and stage structure for predator. By means of the continuation theorem based on coincidence degree theory, a set of sufficient conditions for this system to have at least one positive periodic solution is obtained. Some new results obtained.