Some New Perturbation Bounds for Subunitary Polar Factors

Authors
Li, Wen
Citation
Li, Wen, Some New Perturbation Bounds for Subunitary Polar Factors, Acta mathematica Sinica. English series (Print) , 21(6), 2005, pp. 1515-1520
Journal title
Acta mathematica Sinica. English series (Print) → ACNP
ISSN journal
14398516
Volume
21
Issue
6
Year of publication
2005
Pages
1515 - 1520
Database
ACNP
SICI code
Abstract
In this paper, we present some new perturbation bounds for subunitary polar factors in a special unitarily invariant norm called a Q-norm. Some recent results in the Frobenius norm and the spectral norm are extended to the Q-norm on one hand. On the other hand we also present some relative perturbation bounds for subunitary polar factors.