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arXiv:1207.1776 [math.NA]AbstractReferencesReviewsResources

Perturbation analysis of $A_{T,S}^{(2)}$ on Banach spaces

Fapeng Du, Yifeng Xue

Published 2012-07-07Version 1

In this paper, the perturbation problems of $A_{T,S}^{(2)}$ are considered. By virtue of the gap between subspaces, we derive the conditions that make the perturbation of $A_{T,S}^{(2)}$ is stable when $T,S$ and $A$ have suitable perturbations. At the same time, the explicit formulas for perturbation of $A_{T,S}^{(2)}$ and new results on perturbation bounds are obtained.

Comments: 13 pages, Electronic Journal of Linear Algebra (accepted)
Categories: math.NA, math.SP
Subjects: 15A09, 47A55
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