Abstract
The topic of this chapter is the critical point theory for the functionals that are not locally Lipschitz as was the case in Chatper 2. The setting is more general than in Chatper 2, and the results contain those in Chang [2]. In fact, this chapter presents an extension of Szulkin’s minimax principles [32] for functions of the form I = Φ + Ψ with Φ ∈ C 1(X, ℝ) (X denotes a real Banach space and Ψ a convex, proper and lower semicontinuous functional) to the case where Φ is locally Lipschitz.
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Motreanu, D., Panagiotopoulos, P.D. (1999). Minimax Methods for Variational-Hemivariational Inequalities. In: Minimax Theorems and Qualitative Properties of the Solutions of Hemivariational Inequalities. Nonconvex Optimization and Its Applications, vol 29. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4064-9_3
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