Quadratic Isochronous centers commute

Volume 26 / 1999

M. Sabatini Applicationes Mathematicae 26 (1999), 357-362 DOI: 10.4064/am-26-3-357-362


We prove that every quadratic plane differential system having an isochronous center commutes with a polynomial differential system.


  • M. Sabatini

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