The existence of multiple critical points for a locally Lipschitz continuous functional Φ on a closed convex subset C of a Banach space X is investigated. The problem of finding extra conditions under which critical points for Φ on C turn out to be critical on X is also addressed. Two applications concerning elliptic variational-hemivariational inequalities are then worked out.

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Salvatore A. Marano

Dip. di Matematica e Informatica, Università di Catania, Viale A. Doria 6, 95125 Catania, Italy

marano@dmi.unict.it

Sunra J. N. Mosconi

Dip. di Matematica e Informatica, Università di Catania, Viale A. Doria 6, 95125 Catania, Italy

mosconi@dmi.unict.it
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S. A. Marano, S. J. N. Mosconi. “Critical Points on Closed Convex Sets vs. Critical Points and Applications.” Journal of Convex Analysis 22 (2015), No. 4, 1107–1124. https://doi.org/10.68381/jca22058