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New estimates for the numerical radius of Hilbert space operators.

Authors :
Omidvar, Mohsen Erfanian
Moradi, Hamid Reza
Source :
Linear & Multilinear Algebra. Mar2021, Vol. 69 Issue 5, p946-956. 11p.
Publication Year :
2021

Abstract

New numerical radius inequalities for Hilbert space operators are given. These inequalities improve a well-known inequality of F. Kittaneh. We also show that the inequalities obtained here are sharp. A refinement of the triangle inequality is also shown. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
03081087
Volume :
69
Issue :
5
Database :
Academic Search Index
Journal :
Linear & Multilinear Algebra
Publication Type :
Academic Journal
Accession number :
149306967
Full Text :
https://doi.org/10.1080/03081087.2020.1810200