Cone Monotone Functions: Differentiability and Continuity

نویسندگان

  • JONATHAN M. BORWEIN
  • XIANFU WANG
چکیده

We provide a porosity based approach to the differentiability and continuity of real valued functions on separable Banach spaces, when the function is monotone with respect to an ordering induced by a convex cone K with non-empty interior. We also show that the set of nowhere K-monotone functions has a σ-porous complement in the space of the continuous functions.

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تاریخ انتشار 2003