Limit cycles of some polynomial Liénard systems
Limit cycles of some polynomial Liénard systems
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DOI:
10.1016/j.jmaa.2011.11.070
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发表时间:
2012-05
影响因子:
1.3
通讯作者:
Weijiao Xu;Cuiping Li
中科院分区:
文献类型:
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作者:
Weijiao Xu;Cuiping Li
In this paper, we study the number of limit cycles of some polynomial Liénard systems. By the Melnikov functions and the methods of Hopf, homoclinic and heteroclinic bifurcation theory, we prove that H(2,5)⩾3, H(4,5)⩾5, H(6,5)⩾10, H(8,5)⩾10.