Focal values of plane cubic centers

arxiv: 0902.3415 · v1 · pith:N2RGZ3NCnew · submitted 2009-02-19 · 🧮 math.AG · math.DS

Hans-Christian Graf v. Bothmer , Jakob Kr\"oker This is my paper

classification 🧮 math.AG math.DS

keywords cubicfocalplanevaluescentercentersensureprove

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We prove that the vanishing of 11 focal values is not sufficient to ensure that a plane cubic system has a center.

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