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Journal of Applied Mathematics
Volume 2012 (2012), Article ID 390592, 10 pages
doi:10.1155/2012/390592
Research Article
The Expression of the Drazin Inverse with Rank Constraints
Department of Mathematics, Dezhou University, Dezhou 253023, China
Received 9 October 2012; Accepted 5 November 2012
Academic Editor: C. Conca
Copyright © 2012 Linlin Zhao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
By using the matrix decomposition and the reverse order law, we provide some new expressions of the Drazin inverse for any block matrix with rank constraints.