摘要
利用重合度理论的延拓定理讨论了具HollingⅡ型功能反应的捕食-食饵差分系统周期解的存在性,得到了保证周期解存在的充分条件。
By using a continuation theorem based coincidence degree theory, we study the existence of periodic solution for HollingⅡ One Predator-Two Prey Difference System, a set of verifiable sufficient conditions are established for the existence of positive periodic system.
出处
《柳州师专学报》
2005年第2期115-119,140,共6页
Journal of Liuzhou Teachers College
关键词
HouingⅡ型功能反应
捕食-食饵差分系统
重合度
周期解
HollingⅡfunctional respones
Predator-Two Prey Difference System
coincidence degree
periodic solution
