摘要
本文研究一类基于比率的三种群捕食者-食饵扩散系统,利用重合度理论建立了这类系统正周期解的存在性结果。
In this paper, a class of predator-prey diffusive system of three species with
ratio-dependence is studied. By using coincidence degree theory,we establish the exis-
tence result of positive periodic solution for the predator-prey diffusive system.
出处
《数学学报（中文版）》
SCIE
CSCD
北大核心
2004年第3期531-540,共10页
Acta Mathematica Sinica：Chinese Series
基金
国家自然科学基金(19971026
10271044)
关键词
捕食者食饵扩散系统
正周期解
重合度理论
Predator-prey diffusive system
Positive periodic solution
Coincidence degree theory
