Unbounded quasinormal operators revisited
Functional Analysis
2016-11-25 v1
Abstract
Various characterizations of unbounded closed densely defined operators commuting with the spectral measures of their moduli are established.In particular, Kaufman's definition of an unbounded quasinormal operator is shown to coincide with that given by the third-named author and Szafraniec. Examples demonstrating the sharpness of results are constructed.
Cite
@article{arxiv.1310.3144,
title = {Unbounded quasinormal operators revisited},
author = {Zenon Jan Jablonski and Il Bong Jung and Jan Stochel},
journal= {arXiv preprint arXiv:1310.3144},
year = {2016}
}
Comments
13 pages