Study of limit cycles for some non-smooth Lienard systems
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摘要: 利用代数方法研究了平面非光滑Lienard系统的Hopf环性数, 首先给出了焦点量计算的新公式, 然后在此基础上讨论了一类非光滑Lienard系统的Hopf环性数, 所得结论改进了已知结果.Abstract: Algebraic method was used to study the Hopf cyclicity of non-smooth Lienard systems on the plain. Some new formulas for computing focus values were presented. Based on the formulas, the number of limit cycles bifurcating from some non-smooth Lienard systems was obtained. The results improve the known results.
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Key words:
- Lienard systemsnon-smoothlimit cycleHopf cyclicity /
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