本文考虑具有脉冲效应、反馈控制和分布时滞的n-种群竞争系统的数学模型.利用Mawhin重合度理论,并结合同伦不变性质,以及Lyapunov方法,获得该系统正周期解的存在性和全局稳定性的充分条件,推广和改进最近一些文献的结果.
In this artcle, a class model of impulsive competition system with infinitely distributed delays and feedback controls is considered. By using the continuation theorem of coincidence degree theory, homotopy invariance property and Lyapunov's approach, some sufficient conditions ensuring the existence and stability of positive periodic solutions of the system are obtained. The results improve and extend some recent works.