A numerical estimate of the regularity of a family of Strange non-chaotic Attractors

We estimate numerically the regularities of a family of Strange Non-Chaotic Attractors related with one of the models studied in C. Grebogy et al. (1984) (see also G. Keller (1996)). To estimate these regularities we use wavelet analysis in the spirit of R. de la Llave et al. (2002) together with so...

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Detalhes bibliográficos
Autores: Alsedà, Lluís|||0000-0001-9908-1063, Mondelo Gonzalez, Jose M.|||0000-0002-7135-0599, Romero i Sànchez, David|||0000-0002-2881-268X
Tipo de documento: artigo
Data de publicação:2017
País:España
Recursos:Universitat Autònoma de Barcelona
Repositório:Dipòsit Digital de Documents de la UAB
Idioma:inglês
OAI Identifier:oai:ddd.uab.cat:199319
Acesso em linha:https://ddd.uab.cat/record/199319
https://dx.doi.org/urn:doi:10.1016/j.physd.2016.12.006
Access Level:Acceso aberto
Palavra-chave:Quasiperiodically forced system
Regularity
Wavelets
Descrição
Resumo:We estimate numerically the regularities of a family of Strange Non-Chaotic Attractors related with one of the models studied in C. Grebogy et al. (1984) (see also G. Keller (1996)). To estimate these regularities we use wavelet analysis in the spirit of R. de la Llave et al. (2002) together with some ad-hoc techniques that we develop to overcome the theoretical difficulties that arise in the application of the method to the particular family that we consider. These difficulties are mainly due to the facts that we do not have an explicit formula for the attractor and it is discontinuous almost everywhere for some values of the parameters. Concretely we propose an algorithm based on the Fast Wavelet Transform. Also a quality check of the wavelet coefficients and regularity estimates is done.