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An existence and localization theorem for the solutions of a Dirichlet problem. (English) Zbl 1273.35110
Summary: We establish an existence theorem for a Dirichlet problem with homogeneous boundary conditions by using a general variational principle of Ricceri.

MSC:
35J20 Variational methods for second-order elliptic equations
35J60 Nonlinear elliptic equations
35J25 Boundary value problems for second-order elliptic equations
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