Patterns in parabolic problems with nonlinear boundary conditions
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Data
2007-01-15
Autores
Carvalho, Alexandre Nolasco de
Cruz, German Jesus Lozada [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
We obtain existence of asymptotically stable nonconstant equilibrium solutions for semilinear parabolic equations with nonlinear boundary conditions on small domains connected by thin channels. We prove the convergence of eigenvalues and eigenfunctions of the Laplace operator in such domains. This information is used to show that the asymptotic dynamics of the heat equation in this domain is equivalent to the asymptotic dynamics of a system of two ordinary differential equations diffusively (weakly) coupled. The main tools employed are the invariant manifold theory and a uniform trace theorem. (c) 2006 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Semilinear parabolic problems, Nonlinear boundary conditions, Dumbbell domains, Stable nonconstant equilibria, Invariant manifolds
Como citar
Journal of Mathematical Analysis and Applications. San Diego: Academic Press Inc. Elsevier B.V., v. 325, n. 2, p. 1216-1239, 2007.