摘要
本文讨论了［１］生态系统的正平衡点的中心焦点问题，并通过Ｈｏｐｆ分支理论得到该系统存在二、三个极限环的条件。
In this paper we discuss the problem of centrefocus about a kind of ecosystem’splus equilbrium. We obtain the conditions about stability of the equilbrium and also obtain theexistence of at least two limit cycles and three limit cycles of system in Reference I[1]throughHopf bifurcation.
出处
《柳州师专学报》
1995年第1期26-30,共5页
Journal of Liuzhou Teachers College
