Isochronicity conditions for some planar polynomial systems |
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| Authors: | Islam Boussaada A Raouf Chouikha Jean-Marie Strelcyn |
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| Institution: | aLMRS, UMR 6085, Université de Rouen, Avenue de l'université, BP. 12, 76801 Saint Etienne du Rouvray, France;bLaboratoire Analyse Géometrie et Aplications, URA CNRS 742, Institut Gallilée, Université Paris 13, 99 Avenue J.-B. Clément, 93430 Villetaneuse, France |
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| Abstract: | We study the isochronicity of centers at O∈R2 for systems  ,  , where A,B∈Rx,y], which can be reduced to the Liénard type equation. Using the so-called C-algorithm we have found 27 new multiparameter isochronous centers. |
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| Keywords: | MSC: 34C15 34C25 34C37 |
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