Stability of a convex feasibility problem

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Abstract

The 2-sets convex feasibility problem aims at finding a point in the intersection of two closed convex sets A and B in a normed space X. More generally, we can consider the problem of finding (if possible) two points in A and B, respectively, which minimize the distance between the sets. In the present paper, we study some stability properties for the convex feasibility problem: we consider two sequences of sets, each of them converging, with respect to a suitable notion of set convergence, respectively, to A and B. Under appropriate assumptions on the original problem, we ensure that the solutions of the perturbed problems converge to a solution of the original problem. We consider both the finite-dimensional and the infinite-dimensional case. Moreover, we provide several examples that point out the role of our assumptions in the obtained results.
Lingua originaleEnglish
pagine (da-a)1061-1077
Numero di pagine17
RivistaJournal of Global Optimization
Volume75
DOI
Stato di pubblicazionePubblicato - 2019

Keywords

  • Convex feasibility problem
  • Set-convergence
  • Stability

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