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INFINITELY MANY SOLUTIONS TO THE NEUMANN PROBLEM FOR ELLIPTIC EQUATIONS INVOLVING THE p-LAPLACIAN AND WITH DISCONTINUOUS NONLINEARITIES

Published online by Cambridge University Press:  17 June 2002

Pasquale Candito
Affiliation:
Dipartimento di Matematica, Università di Messina, Contrada Papardo, Salita Sperone, 98166 Sant’ Agata (ME), Italy Dipartimento di Patrimonio Architettonico e Urbanistico Facoltà di Architettura, Università di Reggio Calabria, Salita Melissari (Feo di Vito), 89124 Reggio Calabria, Italy (candito@mailer.ing.unirc.it)
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Abstract

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In this paper, we establish the existence of infinitely many solutions to a Neumann problem involving the p-Laplacian and with discontinuous nonlinearities. The technical approach is mainly based on a very recent result on critical points for possibly non-smooth functionals in a Banach space due to Marano and Motreanu, namely Theorem 1.1 in a paper that is to appear in the journal J. Diff. Eqns (see Theorem 2.3 in the body of this paper). Some applications are presented.

AMS 2000 Mathematics subject classification: Primary 35A15; 35J65; 35R05

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 2002