Relative and Absolute Perturbation Bounds for Weighted Polar Decomposition

Some new perturbation bounds for both weighted unitary polar factors and generalized nonnegative polar factors of the weighted polar decompositions are presented without the restriction that A and its perturbed matrix A˜ have the same rank. These bounds improve the corresponding recent results.

Bibliographic Details
Main Authors: Pingping Zhang, Hu Yang, Hanyu Li
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/219025