Generalized circular projections

We study r-circular projections of matrix norms with some special properties, including the unitarily invariant norms, the unitary congruence invariant norms, and the unitary similarity invariant norms. In each case, we determine all values r for the existence of r-circular projections corresponding...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mathematical analysis and applications 2022-11, Vol.515 (1), p.126378, Article 126378
Main Authors: Ilišević, Dijana, Li, Chi-Kwong, Poon, Edward
Format: Article
Language:English
Subjects:
Circular projection
Isometry
Norm
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study r-circular projections of matrix norms with some special properties, including the unitarily invariant norms, the unitary congruence invariant norms, and the unitary similarity invariant norms. In each case, we determine all values r for the existence of r-circular projections corresponding to isometries of a certain form.
ISSN:0022-247X
1096-0813
DOI:10.1016/j.jmaa.2022.126378