Journal ArticleDOI
Stability of efficient sets: continuity of mobile polarities
TLDR
In this article, the authors introduce the notion of strongly efficient points for antisymmetric transitive relations and define the set of efficient points of an image A := f(D) of the constraint D. This relation is frequently referred to as preference.Abstract:
whenever, for every x E D such that A(x) afi(xO) for i = 1,2, . . . , n, one hash(x) = fi(x,,) for each i. Pareto optimization is also referred to as uecror, multi-objecfiue or multi-criteria optimization. Multi-objective maximization problems (0.1) have been nowadays extended to the situations where f is a mapping from X to a set Y equipped with a transitive relation 2. This relation is frequently called a preference. Consider first the image A := f(D) of the constraint D. An element y. of A is called (3_)-efficient (up to indifference or in the broad sense) if, for every y E A, y z y. implies y 5 yo; it is said to be strongly z-eficient (or efficient in the narrow sense) if, for each y E A, y 2 y. implies y = y,,. The two notions coincide for antisymmetric transitive relations. We shall be primarily concerned with efficient points in the broad sense. The set of efficient points of A (with respect to 7, ) will be denoted by max A (max Z A) and that of strongly efficient points, by max, A. An element of Y is called an efficient value of (0.1) if it is an efficient point of f(D). An element x0 of D is a solution of (0.1) if f(xo) is an efficient point of f(D). We shall use the latter S to denote the set of solutions of (0.1):read more
Citations
More filters
Journal ArticleDOI
Scalarization and stability in vector optimization
Enrico Miglierina,Elena Molho +1 more
TL;DR: In this paper, a class of scalarizations of vector optimization problems is studied in order to characterize weakly efficient, efficient, and properly efficient points of a nonconvex vector problem.
Journal ArticleDOI
Stability results for Ekeland's e-variational principle and cone extremal solutions
Hedy Attouch,Hassan Riahi +1 more
TL;DR: The Ekeland's e-variational principle asserts the existence of a point xI in X, which is called e-extremal with respect to f, which satisfies the semi continuity properties of the mapping which to f associates e- Ext f the set of such e-Extremal points.
Book ChapterDOI
Well-posedness in Vector Optimization
TL;DR: A survey on some theoretical results in vector optimization mainly related to various notions of well-posedness, approximate solutions (or efficient points) and variational principles can be found in this article.
Journal ArticleDOI
On the existence and stability of approximate solutions of perturbed vector equilibrium problems
TL;DR: In this article, the stability of approximate minima under perturbation of the underlying set with a sequence of sets converging in the sense of Painleve-Kuratowski to the initial set is investigated.
Journal ArticleDOI
Continuity properties of solutions of vector optimization
Shu-wen Xiang,Yong-hui Zhou +1 more
TL;DR: In this article, the upper and lower semicontinuity of weakly efficient and efficient solutions on the space Cm (X) of continuous m-dimension-vector-real-valued objective functions on a nonempty compact set X is characterized.
References
More filters
Journal ArticleDOI
Point-to-Set Maps in Mathematical Programming
TL;DR: In this paper, the properties of point-to-set maps are studied from an elementary viewpoint oriented toward applications in mathematical programming, and conditions establishing continuity of extremal value functions and properties of maps determined by inequalities are included.
Journal ArticleDOI
On Cone-Efficiency, Cone-Convexity and Cone-Compactness
TL;DR: In this article, it is shown that the notion of cone-compactness (a generalization of compactness) is sufficient to guarantee the existence of an efficient point and the relationship between the set of efficient points and the optimal sets of certain linear functions is elucidated.