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| The cyclicity of period annulus of a quadratic reversible Lotka-Volterra system 其他 2009-01-01 Li, Chengzhi; Llibre, Jaume 收藏  |  浏览/下载:6/0  |  提交时间:2015/11/13
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| QUADRATIC PERTURBATIONS OF A CLASS OF QUADRATIC REVERSIBLE SYSTEMS WITH TWO CENTERS 其他 2009-01-01 Coll, Bartomeu; Li, Chengzhi; Prohens, Rafel 收藏  |  浏览/下载:3/0  |  提交时间:2015/11/16
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| The period function of hyperelliptic Hamiltonians of degree 5 with real critical points 其他 2008-01-01 Li, Chengzhi; Lu, Kening 收藏  |  浏览/下载:4/0  |  提交时间:2015/11/13
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| The cyclicity of period annuli of some classes of reversible quadratic systems 其他 2006-01-01 Chen, G; Li, C; Liu, C; Llibre, J 收藏  |  浏览/下载:3/0  |  提交时间:2015/11/16
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| Linear estimation of the number of zeros of Abelian integrals for some cubic isochronous centers 其他 2002-01-01 Li, CZ; Li, WG; Llibre, J; Zhang, ZF 收藏  |  浏览/下载:2/0  |  提交时间:2015/11/10
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| Linear estimate of the number of zeros of Abelian integrals for a class of integrable non-Hamiltonian systems 其他 2001-01-01 Li, C.; Li, W.; Llibre, J.; Zhang, Z. 收藏  |  浏览/下载:2/0  |  提交时间:2015/11/12 |
| Linear estimate of the number of zeros of Abelian integrals for a class of integrable non-Hamiltonian systems 其他 2001-01-01 Li, CZ; Li, WG; Llibre, J; Zhang, ZF 收藏  |  浏览/下载:1/0  |  提交时间:2015/11/10
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