EXISTENCE OF POSITIVE PERIODIC SOLUTION FOR A DELAYED PERIODIC PREDATOR-PREY MODEL OF IVLEV TYPE  

作　　者：Chen Jingbing 

机构地区：[1]Dept. of Math., Nanjing University, Nanjing 210008 [2]Dept. of Math., Chizhou Junior College of Normal School, Chizhou 247100

出　　处：《Annals of Differential Equations》2006年第2期134-143,共10页微分方程年刊（英文版）

摘　　要：A periodic coefficients predator-prey system of Ivlev type with both discrete and continuous time delay is investigated. A sufficient condition of the existence of positive periodic solution is established for the system by using the continuation theorem of coincidence degree theory.A periodic coefficients predator-prey system of Ivlev type with both discrete and continuous time delay is investigated. A sufficient condition of the existence of positive periodic solution is established for the system by using the continuation theorem of coincidence degree theory.

关 键 词：periodic solution topological degree time delay 

分 类 号：O17[理学—数学]