Quasilinear elliptic problems with multivalued terms
Nikolaos Halidias, Nikolaos S. Papageorgiou (2000)
Czechoslovak Mathematical Journal
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We study the quasilinear elliptic problem with multivalued terms.We consider the Dirichlet problem with a multivalued term appearing in the equation and a problem of Neumann type with a multivalued term appearing in the boundary condition. Our approach is based on Szulkin’s critical point theory for lower semicontinuous energy functionals.