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A Non-Reflexive Smooth Space with a Smooth Dual
Published online by Cambridge University Press: 20 November 2018
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Let (E, ρ) and (E*ρ*) be a real Banach space and its dual. Restrepo has shown in [4] that, if p and ρ* are both Fréchet differentiable, E is reflexive. The purpose of this note is to show that Fréchet differentiability cannot be replaced by Gateaux differentiability. This answers negatively a question raised by Wulbert [5]. In particular, we will renorm a certain nonreflexive space with a smooth norm whose dual is also smooth.
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- Copyright © Canadian Mathematical Society 1974