摘要
通过应用迭合度理论的连续定理,给出了一类具有脉冲作用和Holling Ⅱ型功能性反应的非自治捕食者-食饵系统正周期解的存在性的充分条件.
By using continuation theorem of coincidence degree theory, the sufficient condition of the existence of positive periodic solutions for a Nonautonomous predator - prey system with impulses effect and Holling type -Ⅱ functional response is obtained.
出处
《云南民族大学学报(自然科学版)》
CAS
2012年第4期280-285,共6页
Journal of Yunnan Minzu University:Natural Sciences Edition