On the Drazin Inverse of the Sum of Two Matrices

We deduce the explicit expressions for (P+Q)D and (PQ)D of two matrices P and Q under the conditions P2Q=PQP and Q2P=QPQ. Also, we give the upper bound of |P+QD-PD|2.

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Bibliographic Details
Main Authors: Xiaoji Liu, Shuxia Wu, Yaoming Yu
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2011/831892
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author Xiaoji Liu
Shuxia Wu
Yaoming Yu
author_facet Xiaoji Liu
Shuxia Wu
Yaoming Yu
author_sort Xiaoji Liu
collection DOAJ
description We deduce the explicit expressions for (P+Q)D and (PQ)D of two matrices P and Q under the conditions P2Q=PQP and Q2P=QPQ. Also, we give the upper bound of |P+QD-PD|2.
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institution OA Journals
issn 1110-757X
1687-0042
language English
publishDate 2011-01-01
publisher Wiley
record_format Article
series Journal of Applied Mathematics
spelling doaj-art-8ad58c8f1a754bc4a6220ddfa5ff752c2025-08-20T02:09:24ZengWileyJournal of Applied Mathematics1110-757X1687-00422011-01-01201110.1155/2011/831892831892On the Drazin Inverse of the Sum of Two MatricesXiaoji Liu0Shuxia Wu1Yaoming Yu2College of Mathematics and Computer Science, Guangxi University for Nationalities, Nanning 530006, ChinaCollege of Mathematics and Computer Science, Guangxi University for Nationalities, Nanning 530006, ChinaSchool of Mathematical Sciences, Monash University, Caulfield East, VIC 3800, AustraliaWe deduce the explicit expressions for (P+Q)D and (PQ)D of two matrices P and Q under the conditions P2Q=PQP and Q2P=QPQ. Also, we give the upper bound of |P+QD-PD|2.http://dx.doi.org/10.1155/2011/831892
spellingShingle Xiaoji Liu
Shuxia Wu
Yaoming Yu
On the Drazin Inverse of the Sum of Two Matrices
Journal of Applied Mathematics
title On the Drazin Inverse of the Sum of Two Matrices
title_full On the Drazin Inverse of the Sum of Two Matrices
title_fullStr On the Drazin Inverse of the Sum of Two Matrices
title_full_unstemmed On the Drazin Inverse of the Sum of Two Matrices
title_short On the Drazin Inverse of the Sum of Two Matrices
title_sort on the drazin inverse of the sum of two matrices
url http://dx.doi.org/10.1155/2011/831892
work_keys_str_mv AT xiaojiliu onthedrazininverseofthesumoftwomatrices
AT shuxiawu onthedrazininverseofthesumoftwomatrices
AT yaomingyu onthedrazininverseofthesumoftwomatrices