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| Uniqueness of limit cycles for Lienard differential equations of degree four 其他 2012-01-01 Li, Chengzhi; Llibre, Jaume
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:5/0  |  提交时间:2015/11/10
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| Abelian Integrals and Limit Cycles 其他 2012-01-01 Li, Chengzhi
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:5/0  |  提交时间:2015/11/10
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| Limit cycles appearing from the perturbation of a system with a multiple line of critical points 其他 2012-01-01 Gasull, Armengol; Li, Chengzhi; Torregrosa, Joan
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:2/0  |  提交时间:2015/11/12
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| A new Chebyshev family with applications to Abel equations 其他 2012-01-01 Gasull, Annengol; Li, Chengzhi; Torregrosa, Joan
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:2/0  |  提交时间:2015/11/12
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| On the hyperelliptic limit cycles of Lienard systems 其他 2012-01-01 Liu, Changjian; Chen, Guoting; Yang, Jiazhong
![](/themes/default/image/downing1.png) 收藏  |  浏览/下载:5/0  |  提交时间:2015/11/16
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