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Three Solutions Theorem for a Quasilinear Dirichlet Boundary Value Problem
Paweł Goncerz
Schedae Informaticae, Volume 21, 2012, pp. 159 - 168
We consider a Dirichlet boundary value problem driven by the p-Laplacian with the right hand side being a Carathéodory function. The existence of solutions is obtained by the use of a special form of the three critical points theorem.