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Lower semicontinuity of attractors for non-autonomous dynamical systems

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Autor(es):
Carvalho, Alexandre N. ; Langa, Jose A. ; Robinson, James C.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: Ergodic Theory and Dynamical Systems; v. 29, p. 16-pg., 2009-12-01.
Resumo

This paper is concerned with the lower semicontinuity of attractors for semilinear non-autonomous differential equations in Banach spaces. We require the unperturbed attractor to be given as the union of unstable manifolds of time-dependent hyperbolic solutions, generalizing previous results valid only for gradient-like systems in which the hyperbolic solutions are equilibria. The tools employed are a study of the continuity of the local unstable manifolds of the hyperbolic solutions and results on the continuity of the exponential dichotomy of the linearization around each of these solutions. (AU)

Processo FAPESP: 03/10042-0 - Sistemas dinâmicos não lineares e aplicações
Beneficiário:Alexandre Nolasco de Carvalho
Modalidade de apoio: Auxílio à Pesquisa - Programa PRONEX - Temático