Separable C∗C^{\ast}-Algebras and weak∗^{\ast}-fixed point property

preprint2013arXivOpen access

Abstract

It is shown that the dual A^\hat{A} of a separable C∗C^{\ast}-algebra AA is discrete if and only if its Banach space dual has the weak∗^{\ast}-fixed point property. We prove further that these properties are equivalent to the uniform weak∗^{\ast} Kadec-Klee property of A∗A^{\ast} and to the coincidence of the weak∗^{\ast} topology with the norm topology on the pure states of AA.

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