Results 21 to 30 of about 7,261,562 (300)

On the positive linear set valued maps [PDF]

open access: yesMiskolc Mathematical Notes, 2013
In this paper positive linear set valued maps defined on the cone are studied. The representation theorem for positive linear set valued maps is given and Lipschitz continuity of these maps is proved. The estimations of upper and lower norms of the positive linear set valued maps are obtained.
Huseyin, Anar, Huseyin, Nesir
openaire   +2 more sources

ϵ-Henig Saddle Points and Duality of Set-Valued Optimization Problems in Real Linear Spaces

open access: yesThe Scientific World Journal, 2013
We study ϵ-Henig saddle points and duality of set-valued optimization problems in the setting of real linear spaces. Firstly, an equivalent characterization of ϵ-Henig saddle point of the Lagrangian set-valued map is obtained.
Zhi-Ang Zhou
doaj   +1 more source

On Constrained Set-Valued Semi-Infinite Programming Problems with ρ-Cone Arcwise Connectedness

open access: yesAxioms, 2021
In this paper, we establish sufficient Karush–Kuhn–Tucker (for short, KKT) conditions of a set-valued semi-infinite programming problem (SP) via the notion of contingent epiderivative of set-valued maps. We also derive duality results of Mond–Weir (MWD),
Koushik Das, Savin Treanţă
doaj   +1 more source

The Relationship between Two Kinds of Generalized Convex Set-Valued Maps in Real Ordered Linear Spaces

open access: yesAbstract and Applied Analysis, 2013
A new notion of the ic-cone convexlike set-valued map characterized by the algebraic interior and the vector closure is introduced in real ordered linear spaces.
Zhi-Ang Zhou
doaj   +1 more source

Fixed Point Theorems for Set-Valued Contraction Type Maps in Metric Spaces

open access: yesFixed Point Theory and Applications, 2010
We first give some fixed point results for set-valued self-map contractions in complete metric spaces. Then we derive a fixed point theorem for nonself set-valued contractions which are metrically inward. Our results generalize many well-known results in
A. Amini-Harandi, D. O'Regan
doaj   +2 more sources

Best Proximity Pairs for Upper Semicontinuous Set-Valued Maps in Hyperconvex Metric Spaces

open access: yesFixed Point Theory and Applications, 2009
A best proximity pair for a set-valued map F:A⊸B with respect to a map g:A→A is defined, and new existence theorems of best proximity pairs for upper semicontinuous set-valued maps with respect to a homeomorphism are proved in hyperconvex ...
R. P. Agarwal   +3 more
doaj   +1 more source

Fixed points of set-valued maps in locally complete spaces

open access: yesFixed Point Theory and Applications, 2017
We prove an extension of the Pareto optimization criterion to locally complete locally convex vector spaces to guarantee the existence of fixed points of set-valued maps.
Carlos Bosch   +4 more
doaj   +1 more source

Random Lifting of Set-Valued Maps

open access: yes, 2022
In this paper we discuss the properties of particular set-valued maps in the space of probability measures on a finite-dimensional space that are con- structed by mean of a suitable lift of set-valued map in the underlying space. In particular, we are interested to establish under which conditions some good regularity properties of the original set ...
Rossana Capuani   +2 more
openaire   +8 more sources

Globally proper efficiency of set-valued optimization and vector variational inequality involving the generalized contingent epiderivative

open access: yesJournal of Inequalities and Applications, 2018
In this paper, firstly, a new property of the cone subpreinvex set-valued map involving the generalized contingent epiderivative is obtained. As an application of this property, a sufficient optimality condition for constrained set-valued optimization ...
Wang Chen, Zhiang Zhou
doaj   +1 more source

On some optimization problems in not necessarily locally convex space [PDF]

open access: yesYugoslav Journal of Operations Research, 2008
In this note, by using O. Hadžić's generalization of a fixed point theorem of Himmelberg, we prove a non - cooperative equilibrium existence theorem in non - compact settings and a generalization of an existence theorem for non - compact infinite ...
Gajić Ljiljana
doaj   +1 more source

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