An answer to a question of A. Lubin: The lifting problem for commuting subnormals
Functional Analysis
2015-09-21 v3
Abstract
The subnormality for the sum of commuting subnormal operators does not guarantee the existence of commuting normal extensions.
Cite
@article{arxiv.1406.6450,
title = {An answer to a question of A. Lubin: The lifting problem for commuting subnormals},
author = {Sang Hoon Lee and Woo Young Lee and Jasang Yoon},
journal= {arXiv preprint arXiv:1406.6450},
year = {2015}
}
Comments
This revised version has salvaged a gap in the inequality of (2.7) of the earlier version