Self-similar solutions of the porous medium equation in a half-space with a nonlinear boundary condition: existence and symmetry

Dávila J.; Rossi JD

Abstract

We find existence of a nonnegative compactly supported solution of the problem ?u=u? in ?N+, ?u/??=u on ??N+. Moreover, we prove that every nonnegative solution with finite energy is compactly supported and radially symmetric in the tangential variables. © 2004 Elsevier Inc. All rights reserved.

Más información

Título según WOS: Self-similar solutions of the porous medium equation in a half-space with a nonlinear boundary condition: existence and symmetry
Título según SCOPUS: Self-similar solutions of the porous medium equation in a half-space with a nonlinear boundary condition: Existence and symmetry
Título de la Revista: JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
Volumen: 296
Número: 2
Editorial: ACADEMIC PRESS INC ELSEVIER SCIENCE
Fecha de publicación: 2004
Página de inicio: 634
Página final: 649
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0022247X04003397
DOI:

10.1016/j.jmaa.2004.04.031

Notas: ISI, SCOPUS