Open Access
2015 Closed discs, half planes and spectral states in l.m.c. algebras
A. K. Gaur
Ann. Funct. Anal. 6(1): 227-234 (2015). DOI: 10.15352/afa/06-1-17

Abstract

In this note we express the localized numerical range of elements in locally multiplicative convex (l.m.c.) algebras as the intersection of closed discs. We characterize the spectral states on l.m.c. algebras in terms of their radicals.

Citation

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A. K. Gaur. "Closed discs, half planes and spectral states in l.m.c. algebras." Ann. Funct. Anal. 6 (1) 227 - 234, 2015. https://doi.org/10.15352/afa/06-1-17

Information

Published: 2015
First available in Project Euclid: 19 December 2014

zbMATH: 06441279
MathSciNet: MR3297799
Digital Object Identifier: 10.15352/afa/06-1-17

Subjects:
Primary: 46H05
Secondary: 47A10 , 47A12 , 47A30

Keywords: Moore--Penrose inverse , numerical radius , ‎operator inequality , star algebras

Rights: Copyright © 2015 Tusi Mathematical Research Group

Vol.6 • No. 1 • 2015
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