SIMULTANEOUS FARTHEST POINTS AND NORM DERIVATIVES IN BANACH SPACES

TitleSIMULTANEOUS FARTHEST POINTS AND NORM DERIVATIVES IN BANACH SPACES
Publication TypeJournal Article
Year of Publication2018
AuthorsIRANMANESH, M, SOLEIMANY, F
Volume22
Issue2
Start Page233
Pagination12
Date Published2018
ISSN1083-2564
AMS41A28, 46B28, 46L05
Abstract

In this paper, we present various characterizations of the simultaneous farthest point of elements by bounded sets in normed spaces. First, we express short proofs for previous results. We did this work by using norm derivatives method. Then we extend to C- algebras some results on the simultaneous farthest point that found in B (H) the algebra of all bounded operators on a Hilbert space by applying of the concept of numerical rang and Gelfand-Naimark theorem.

URLhttps://acadsol.eu/en/articles/22/2/6.pdf
DOI10.12732/caa.v22i2.6
Refereed DesignationRefereed
Full Text

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