EXISTENCE OF TWO PERIODIC SOLUTIONS TO A RATIO-DEPENDENT PREDATOR-PREY MODEL WITH PREDATOR'S HARVEST  

作　　者：Tian Desheng Wang Mei Zeng Xianwu 

机构地区：[1]College of Sciences, Hubei University of Technology, Wuhan 430068 [2]College of Math. and Statistics, Wuhan University, Wuhan 430072

出　　处：《Annals of Differential Equations》2007年第4期492-498,共7页微分方程年刊（英文版）

基　　金：the Scientific Research Foundation of the Doctor Department of Hubei University of Technology

摘　　要：In this paper, we study a non-autonomous ratio-dependent predator-prey model with predator＇s 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.In this paper, we study a non-autonomous ratio-dependent predator-prey model with predator＇s 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.

关 键 词：predator-prey model RATIO-DEPENDENT predator＇s harvest periodic solution coincidence degree 

分 类 号：O17[理学—数学]