一类脉冲时滞Hassell-Varley型捕食被捕食系统的正周期解

Existence of Positive Periodic Solutions for a Kind of Impulsive Delayed Predator-prey Models

研究了一类非线性脉冲时滞Hassell-Varley型捕食被捕食系统的动力学行为.通过利用重合度原理研究其正周期解的存在性,得到了该系统正周期解存在性的充分条件.

the dynamic behaviors for a class of nonlinear impulsive delayed predator-prey models with Hassell-Varley type functional response and two time-varying delays in the system were studied. By using the coincidence degree theory, some sufficient conditions are determined that guarantee the existence of positive periodic solutions for the model.