摘要
研究了Kolmogorov系统 x=x(a0+a1x-a2x2-a3xy), y=y(x2-1),在某些条件下证明了该系统极限环的存在性和唯一性以及不存在性.
The existence, uniqueness and non-existence of the limit cycles in cubic Kolmogorov differential system =x(a_0+a_1x-a_2x^2-a_3xy);=y(x^2-1), which results were proved is considered under certain conditions.
出处
《吉林化工学院学报》
CAS
2004年第4期99-101,共3页
Journal of Jilin Institute of Chemical Technology