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Keywords:
locally Lipschitz continuous and indefinite functionals; deformation lemmas; critical point theorems
locally Lipschitz continuous and indefinite functionals; deformation lemmas; critical point theorems
Summary:
In this paper, two deformation lemmas concerning a family of indefinite, non necessarily continuously differentiable functionals are proved. A critical point theorem, which extends the classical result of Benci-Rabinowitz [14, Theorem 5.29] to the above-mentioned setting, is then deduced.
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