A note on the maximal numerical range
Functional Analysis
2018-03-29 v1
Abstract
We show that the maximal numerical range of an operator has a non-empty intersection with the boundary of its numerical range if and only if the operator is normaloid. A description of this intersection is also given.
Keywords
Cite
@article{arxiv.1803.10516,
title = {A note on the maximal numerical range},
author = {Ilya M Spitkovsky},
journal= {arXiv preprint arXiv:1803.10516},
year = {2018}
}
Comments
6 pages