A non-smooth extension of Frechet differentiability of the norm with applications to numerical ranges-Reference-Cited by-同舟云学术

A non-smooth extension of Frechet differentiability of the norm with applications to numerical ranges

Published:1986-07 Issue:2 Volume:28 Page:121-137
ISSN:0017-0895
Container-title:Glasgow Mathematical Journal
language:en
Short-container-title:Glasgow Math. J.

Author:

Aparicio C.,Ocaña F.,Payá R.,Rodríguez A.

Abstract

The following result in the theory of numerical ranges in Banach algebras is well known (see [3, Theorem 12.2]). The numerical range of an element F in the bidual of a unital Banach algebra A is the closure of the set of values at F of the w*-continuous states of . As a consequence of the results in this paper the following

Publisher

Cambridge University Press (CUP)

Subject

General Mathematics

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