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Search: All articles in the CMB digital archive with keyword Gâteaux smoothness

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1. CMB 2005 (vol 48 pp. 455)

Rychtář, Jan
On Gâteaux Differentiability of Convex Functions in WCG Spaces
It is shown, using the Borwein--Preiss variational principle that for every continuous convex function $f$ on a weakly compactly generated space $X$, every $x_0\in X$ and every weakly compact convex symmetric set $K$ such that $\cspan K=X$, there is a point of G\^ateaux differentiability of $f$ in $x_0+K$. This extends a Klee's result for separable spaces.

Keywords:Gâteaux smoothness, Borwein--Preiss variational principle,, weakly compactly generated spaces
Category:46B20

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