A fixed point theorem for a class of multi-valued continuously differentiable maps
Gilles Fournier, Donald Violette (1987)
Annales Polonici Mathematici
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Gilles Fournier, Donald Violette (1987)
Annales Polonici Mathematici
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Marián J. Fabián (1979)
Časopis pro pěstování matematiky
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Rhoades, B.E. (2010)
The Journal of Nonlinear Sciences and its Applications
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Josef Kolomý (1986)
Commentationes Mathematicae Universitatis Carolinae
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Durea, M. (2003)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 46A30, 54C60, 90C26. In this paper we prove two results of nonsmooth analysis involving the Fréchet subdifferential. One of these results provides a necessary optimality condition for an optimization problem which arise naturally from a class of wide studied problems. In the second result we establish a sufficient condition for the metric regularity of a set-valued map without continuity assumptions.
Ćirić, Ljubomir B. (1987)
Publications de l'Institut Mathématique. Nouvelle Série
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Hadžić, Olga, Ovcin, Zoran (1998)
Novi Sad Journal of Mathematics
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Abderrahim Jourani (1996)
Studia Mathematica
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We extend the open mapping theorem and inversion theorem of Robinson for convex multivalued mappings to γ-paraconvex multivalued mappings. Some questions posed by Rolewicz are also investigated. Our results are applied to obtain a generalization of the Farkas lemma for γ-paraconvex multivalued mappings.
Gadhi, N. (2003)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: Primary 90C29; Secondary 90C30. In this work, we use the notion of Approximate Hessian introduced by Jeyakumar and Luc [19], and a special scalarization to establish sufficient optimality conditions for constrained multiobjective optimization problems. Throughout this paper, the data are assumed to be of class C^1, but not necessarily of class C^(1.1).