Some remarks on the class of continuous (semi-)∈strictly quasiconvex functions

A. Daniilidis, Y. Garcia Ramos

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12 Citations (Scopus)

Abstract

We introduce the notion of variational (semi-)∈strict quasimonotonicity for a multivalued operator T ∈: X * relative to a nonempty subset A of X which is not necessarily included in the domain of T. We use this notion to characterize the subdifferentials of continuous (semi-)∈strictly quasiconvex functions. The proposed definition is a relaxation of the standard definition of (semi-)∈strict quasimonotonicity, the latter being appropriate only for operators with nonempty values. Thus, the derived results are extensions to the continuous case of the corresponding results for locally Lipschitz functions. © 2007 Springer Science+Business Media, LLC.
Original languageEnglish
Pages (from-to)37-48
JournalJournal of Optimization Theory and Applications
Volume133
Issue number1
DOIs
Publication statusPublished - 1 Apr 2007

Keywords

  • Quasiconvex functions
  • Quasimonotone operators
  • Utility functions
  • Variational analysis

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