Nonlinear multivalued boundary value problems
Ralf Bader, Nikolaos S. Papageorgiou (2001)
Discussiones Mathematicae, Differential Inclusions, Control and Optimization
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In this paper, we study nonlinear second order differential inclusions with a multivalued maximal monotone term and nonlinear boundary conditions. We prove existence theorems for both the convex and nonconvex problems, when and , with A being the maximal monotone term. Our formulation incorporates as special cases the Dirichlet, Neumann and periodic problems. Our tools come from multivalued analysis and the theory of nonlinear monotone operators.