Centers and uniform isochronous centers of planar polynomial differential systems

For planar polynomial vector fields of the form \[ (-y X(x,y)) x (x Y(x,y)) y, \] where X and Y start at least with terms of second order in the variables x and y, we determine necessary and sufficient conditions under which the origin is a center or a uniform isochronous centers.

Detalhes bibliográficos
Autores: Llibre, Jaume|||0000-0002-9511-5999, Ramírez, Rafael Orlando|||0000-0002-4958-0291, Ramírez, Valentín, Sadovskaia, Natalia
Tipo de documento: artigo
Data de publicação:2018
País:España
Recursos:Universitat Autònoma de Barcelona
Repositório:Dipòsit Digital de Documents de la UAB
Idioma:inglês
OAI Identifier:oai:ddd.uab.cat:199330
Acesso em linha:https://ddd.uab.cat/record/199330
https://dx.doi.org/urn:doi:10.1007/s10884-018-9672-0
Access Level:Acceso aberto
Palavra-chave:Center-focus problem
Polynomial planar differential system
Uniform isochronous centers
Descrição
Resumo:For planar polynomial vector fields of the form \[ (-y X(x,y)) x (x Y(x,y)) y, \] where X and Y start at least with terms of second order in the variables x and y, we determine necessary and sufficient conditions under which the origin is a center or a uniform isochronous centers.