Differentiable invariant manifolds of nilpotent parabolic points

We consider a map F of class Cr with a fixed point of parabolic type whose differential is not diagonalizable, and we study the existence and regularity of the invariant manifolds associated with the fixed point using the parameterization method. Concretely, we show that under suitable conditions on...

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Detalhes bibliográficos
Autores: Cufí Cabré, Clara|||0000-0003-4382-5726, Fontich, Ernest|||0000-0002-2415-9310
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:257123
Acesso em linha:https://ddd.uab.cat/record/257123
https://dx.doi.org/urn:doi:10.3934/dcds.2021053
Access Level:acceso abierto
Palavra-chave:Parabolic point
Invariant manifold
Parameterization method
Descrição
Resumo:We consider a map F of class Cr with a fixed point of parabolic type whose differential is not diagonalizable, and we study the existence and regularity of the invariant manifolds associated with the fixed point using the parameterization method. Concretely, we show that under suitable conditions on the coefficients of F, there exist invariant curves of class Cr away from the fixed point, and that they are analytic when F is analytic. The differentiability result is obtained as an application of the fiber contraction theorem. We also provide an algorithm to compute an approximation of a parameterization of the invariant curves and a normal form of the restricted dynamics of F on them.