Entropy solutions for the $p(x)$-Laplace equations

We consider a Dirichlet problem in divergence form with variable growth, modeled on the $ p(x)$-Laplace equation. We obtain existence and uniqueness of an entropy solution for $ L^1$ data, as well as integrability results for the solution and its gradient. The proofs rely crucially on a priori estim...

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Detalles Bibliográficos
Autores: Sanchón, Manel, Urbano, José Miguel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/96448
Acceso en línea:https://hdl.handle.net/2445/96448
Access Level:acceso abierto
Palabra clave:Equacions en derivades parcials
Operadors el·líptics
Anàlisi funcional no lineal
Partial differential equations
Elliptic operator
Nonlinear functional analysis
Descripción
Sumario:We consider a Dirichlet problem in divergence form with variable growth, modeled on the $ p(x)$-Laplace equation. We obtain existence and uniqueness of an entropy solution for $ L^1$ data, as well as integrability results for the solution and its gradient. The proofs rely crucially on a priori estimates in Marcinkiewicz spaces with variable exponent, for which we obtain new inclusion results of independent interest.