A Mean Value Theorem for Tangentially Convex Functions

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The main result is an equality type mean value theorem for tangentially convex functions in terms of tangential subdifferentials, which generalizes the classical one for differentiable functions, as well as Wegge theorem for convex functions. The new mean value theorem is then applied, analogously to what is done in the classical case, to characterize, in the tangentially convex context, Lipschitz functions, increasingness with respect to the ordering induced by a closed convex cone, convexity, and quasiconvexity.

Translated title of the contributionUn teorema del valor medio para funciones tangencialmente convexas
Original languageEnglish
Article number13
Number of pages10
JournalSet-Valued Analysis
Issue number2
Publication statusPublished - 27 Mar 2023


  • Convexity
  • Mean value theorem
  • Monotonicity
  • Quasiconvexity
  • Quasimonotonicity
  • Tangential convexity
  • Tangential subdifferential


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