具多奇点的一类非线性系统极限环的唯一性

Uniqueness of Limit Cycles for Category of Nonlinear Differential Systems with Multiple Singular Points

本文研究了一类广义Ｌｉｅｎａｒｄ系统极限环的唯一性问题，所获结果允许系统具有多个奇点，改进和推广了一些已知结果。

In this paper, we study the uniqueness of limit cycles for the same class of nonlinear differential systems,some new results are obtained. These results are suit-able for the systems with multiple singular points, and generalize and improve some known results concerning the Lienard-type system in this direction.