摘要
给出了如下一类稀疏效应下的捕食系统:x=bx^2(k-x)-bxy,y=一cy+(βx-γy)y存在唯一极限环的充要条件。
A necessary and sufficient condition of the existence and uniquence of the limit cycles for the following system is given in this paper: x = bx2 (k-x)-bxy, y = -cy+ (βx-γy)y, which is a class of prey-predator system with sparssing effect.
出处
《生物数学学报》
CSCD
2003年第2期207-210,共4页
Journal of Biomathematics
