The Gau-Wang-Wu conjecture on partial isometries holds in the 5-by-5 case
Functional Analysis
2021-08-17 v1
Abstract
Gau, Wang and Wu in their LAMA'2016 paper conjectured (and proved for ) that an -by- partial isometry cannot have a circular numerical range with a non-zero center. We prove that this statement holds also for .
Cite
@article{arxiv.2108.07024,
title = {The Gau-Wang-Wu conjecture on partial isometries holds in the 5-by-5 case},
author = {Ilya M. Spitkovsky and Ibrahim Suleiman and Elias Wegert},
journal= {arXiv preprint arXiv:2108.07024},
year = {2021}
}
Comments
10 pages