EXISTENCE OF TWO PERIODIC SOLUTIONS TO A RATIO-DEPENDENT PREDATOR-PREY MODEL WITH PREDATORS HARVEST
In this paper, we study a non-autonomous ratio- dependent predator-prey model with predators harvest. By means of the coincidence degree theory, we establish sufficient conditions for the existence of at least two positive periodic solutions of this model.
predator-prey model ratio-dependent predators harvest periodic solution coincidence degree
Tian Desheng Wang Mei Zeng Xianwu
College of Sciences, Hubei University of Technology, Wuhan 430068 College of Math. and Statistics, Wuhan University, Wuhan 430072
国际会议
广州
英文
492-498
2007-12-09(万方平台首次上网日期,不代表论文的发表时间)