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Minimax Theory and its Applications 04 (2019), No. 2, 281--304 Copyright Heldermann Verlag 2019 A Theorem on Variational Inequalities for Affine Mappings Jean Saint Raymond Université Paris Diderot, Inst. Mathématiques Jussieu, Paris Rive Gauche, 75005 Paris, France jean.saint-raymond@imj-prg.fr We give a proof of a conjecture by B. Ricceri on variational inequalties which extends a partial result of N. D. Yen. We need an additional hypothesis of compactness for a convex set, and refute the conjecture if this additional hypothesis is removed. Keywords: Variational inequalities, convex compact sets. MSC: 47J20, 49J45, 46E10. [ Fulltext-pdf (191 KB)] for subscribers only. |