Convex cones and convex sets
Nachbin, Leopoldo (1993)
Portugaliae mathematica
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Displaying similar documents to “The calculus of operator functions and operator convexity”
Convex cones and convex sets
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We introduce a criterion for a set to be Γ-null. Using it we give a shorter proof of the result that the set of points where a continuous convex function on a separable Asplund space is not Fréchet differentiable is Γ-null. Our criterion also implies a new result about Gâteaux (and Hadamard) differentiability of quasiconvex functions.
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