Cyclicity of a kind of degenerate polycycles through three singular points

来源 :中国科学：数学英文版 | 被引量 : 0次 | 上传用户：wuxi_xizi

【摘要】

：

This paper deals with the cyclicity of a kind of degenerate planar polycycles through a saddle-node P0 and two hyperbolic saddles P1 and P2, where the hyperboli

【作者】

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ZHAO Liqin

【机构】

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DepartmentofMathematics

【出处】

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中国科学：数学英文版

【发表日期】

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2005年6期

【关键词】

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DEGENERATE polycycle cyclicity finitely-smooth NORMAL form transition map. de

【基金项目】

：

国家自然科学基金

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This paper deals with the cyclicity of a kind of degenerate planar polycycles through a saddle-node P0 and two hyperbolic saddles P1 and P2, where the hyperbolicity ratio of the saddle P1 (which connects the saddle-node with hh-connection) is equal to 1 a

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Cyclicity of a kind of degenerate polycycles through three singular points

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