摘要
研究一类具有生物控制和比率型功能反应的食物链系统.利用重合度理论中的延拓定理,证明了该系统周期解的存在性,得到一组保证该系统存在正周期解的充分条件.
A food chain system with biocontrol and ratio functional response was investigated. By means of the prolongation theorem of coincidence degree Theory, the existence of the periodic solutions of the system was proved, a set of sufficient conditions to guarantee the existence of the positive periodic solutions of the system were obtained.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2009年第4期730-736,共7页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:10671152)
关键词
捕食者-食饵系统
比率型功能性反应
反馈控制
周期解
重合度
predator-prey system
ratio functional response
feedback control
periodic solution
coincidencedegree
