具有收获的Kolmogorov系统的次谐分枝与浑沌现象

Subharmonic Bifurcation and Chaotic Behaviour in the Periodic Time-Dependent Kolmogorov System with Constant Harvesting Rates

研究一类食饵种群具有常数收获率的Kolmogorov生态系统的周期激励模型，应用Melnikov方法，得到了该系统存在浑沌与次谐分枝的某些充分条件．

In this paper,the authours have proved the existence of chaotic behaviour andsubharmonic bifurcation in the periodic time-dependent Kolmogorov system with constant harvest-ing rates by using Melnikov's method.