Existence and infinitely many solutions for an abstract class of hemivariational inequalities
Journal of Inequalities and Applications volume 2005, Article number: 147897 (2005)
A general method is given in order to guarantee at least one nontrivial solution, as well as infinitely many radially symmetric solutions, for an abstract class of hemivariational inequalities. This abstract class contains some special cases studied by many authors. We remark that, differently from the classical literature, in the proofs we use the Cerami compactness condition and the principle of symmetric criticality for locally Lipschitz functions.
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Varga, C. Existence and infinitely many solutions for an abstract class of hemivariational inequalities. J Inequal Appl 2005, 147897 (2005). https://doi.org/10.1155/JIA.2005.89