一类Kolmogorov系统的极限环存在与唯一性

Existence and Uniqueness of the Limit Cycle in a Class of Kolmogorov's System

运用定性理论分析了一类Kolmogorov方程平衡点的性质,给出存在唯一稳定极限环的充分条件.

By using methods of qualitative analysis, the feature of equilibrium point is considered, and the sufficient conditions of the existence of the unique limit cycle in a class of Kolmogorov＇s system are found.