摘要
证明了两种群均具有常收获率或常投放率的Ｌｏｔｋａ－Ｖｏｌｔｅｒｒａ系统可以存在三个极限环．
In this paper, we prove that there are three limit cycles in Lotka-Volterra systems with two species which both posses the constant harvest rate or investment rate.
出处
《生物数学学报》
CSCD
2002年第1期27-30,共4页
Journal of Biomathematics
基金
辽宁省教育厅高校科研项目(A990311010)
