Reverse Inequalities for the Numerical Radius of Linear Operators in Hilbert Spaces
Functional Analysis
2007-05-23 v1 Operator Algebras
Abstract
Some elementary inequalities providing upper bounds for the difference of the norm and the numerical radius of a bounded linear operator on Hilbert spaces under appropriate conditions are given.
Cite
@article{arxiv.math/0509029,
title = {Reverse Inequalities for the Numerical Radius of Linear Operators in Hilbert Spaces},
author = {Sever Silvestru Dragomir},
journal= {arXiv preprint arXiv:math/0509029},
year = {2007}
}