Quadratic Isochronous Centers Commute
نویسنده
چکیده
We prove that every quadratic plane differential system having an isochronous center commutes with a polynomial differential system.
منابع مشابه
Uniform isochronous cubic and quartic centers: Revisited
In this paper we completed the classification of the phase portraits in the Poincaré disc of uniform isochronous cubic and quartic centers previously studied by several authors. There are three and fourteen different topological phase portraits for the uniform isochronous cubic and quartic centers respectively.
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