Dual characterizations of the set containments with strict cone-convex inequalities in Banach spaces

  • Authors:

  • A. R. Doagooei;H. Mohebi

  • Affiliations:

  • Department of Mathematics, Mahani Mathematical Research Center, University of Kerman, Kerman, Iran;Department of Mathematics, Mahani Mathematical Research Center, University of Kerman, Kerman, Iran

  • Venue:
  • Journal of Global Optimization
  • Year:
  • 2009

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Abstract

We give characterizations of the containment of a convex set either in an arbitrary convex set or in a set described by reverse cone-convex inequalities in Banach spaces. The convex sets under consideration are the solution sets of an arbitrary number of cone-convex inequalities, which can be either weak or strict inequalities. These characterizations provide ways of verifying the containments either by comparing their corresponding dual cones or by checking the consistency of suitable associated systems. Particular cases of dual characterizations of set containments have played key roles in solving large scale knowledge-based data classification problems, where they are used to describe the containments as inequality constraints in optimization problems. The concept of evenly convex set is used to derive the dual conditions, characterizing the set containments.