关于Liénard方程极限环的不存在性
On the Inexistence of Limit Cycles for Liénard Equations
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摘要: 本文讨论Ｌｉéｎａｒｄ方程的极限环问题，得到若干个Ｌｉéｎａｒｄ方程无环的充分条件。Abstract: This paper deals with the limit cycles for Liénard equation. Some sufficient conditions for the inexistence of limit cycle are given.
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