摘要
用定性分析的方法对一类Kol mogorov系统dxdt=x(a0-a1x+a2xn-1-a3xn+a4xn-1ym),ddty=y(b1xn-b2)进行了研究.分析了该系统平衡点的性态,并得到了系统在正平衡点外围极限环的不存在性与存在唯一性的相关条件.
By using qualitative analysis, a kind of Kolmogorov＇s system dx/dt=x（α0-α1x＋α2x^n-1-α3x^n＋α4x^n-1y^m）,dy/dt=y（b1x^n-b2） was studied in this study. The conditions for nonexistence, existence and uniqueness of the limit cycle around the positive equilibrium point were obtained.
出处
《文山师范高等专科学校学报》
2006年第3期101-103,共3页
Journal of Wenshan Teachers College
