摘要
本文利用 Mawhin的重合度理论研究了一类多物种竞争差分系统正周期解的存在性 。
In this paper,by using the continuation theorem of Mawhin's coincidence degree,obtain a new sufficient condition for the existence of positive periodic solutious of multispecies ecological competitive difference system.
出处
《数学理论与应用》
2004年第2期33-37,共5页
Mathematical Theory and Applications
关键词
差分系统
多物种竞争
正周期解
重合度理论
Multispecies ecological competitive system Positive periodic sloution Coincidence degree theory.
