摘要
利用重合度理论研究了一类具有Holling-Ⅱ型非自治一个食饵两个捕食离散系统的周期解,并得到了其存在周期解的充分条件.
This paper focuses on the establishment of positive periodic solutions for a nonautonomous discrete two-prey-onepredators system with Holling type Ⅱ function responses by applying the coincidence degree theory.The sufficient condition for existence of periodic solutions is obtained.
出处
《玉溪师范学院学报》
2012年第12期1-7,共7页
Journal of Yuxi Normal University
基金
云南省教育厅科学研究基金重点项目
编号:2012Z065
关键词
重合度理论
Holling-Ⅱ型
离散食饵-捕食系统
周期解
coincidence degree theory
Holling-Type-Ⅱ functional response
one-prey two-predators system
periodic solution
