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On the Nonexistence of Laurent Polynomial First Integrals for General Semi-quasihomogeneous Systems
作者姓名:史少云  祝文壮  黄庆道
作者单位:School of Mathematics,Jilin University,Changchun,130012,School of Mathematics,Jilin University,Changchun,130012,School of Mathematics,Jilin University,Changchun,130012
基金项目:The NSF (10126013) of China.
摘    要:An autonomous system of ODFs which admitting a quasi-homogeneous group of symmetries is called a quasihomogeneous one.

关 键 词:Laurent多项式  半拟齐次系统  首次积分  不存在性  常微分方程  Kowalevsky矩阵  Newton多面体
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