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Zbl 1148.15001
Cvetković-Ilić, Dragana S.
A note on the representation for the Drazin inverse of $2 \times 2$ block matrices.
(English)
[J] Linear Algebra Appl. 429, No. 1, 242-248 (2008). ISSN 0024-3795

The author gives the representations of the Drazin inverse of $2 \times 2$ block matrices under conditions weaker than those used in the following papers on the subject: 1. {\it D. S. Djordjević} and {\it P. S. Stanimirović} [Czech. Math. J. 51, No.~3, 617--634 (2001; Zbl 1079.47501)]; 2. {\it R. Hartwig, X. Li} and {\it Y. Wei} [SIAM J. Matrix Anal. Appl. 27, No. 3, 757--771 (2006; Zbl 1100.15003)].
[Qing-Wen Wang (Shanghai)]
MSC 2000:
*15A09 Matrix inversion

Keywords: block matrix; Drazin inverse; additive result; representations

Citations: Zbl 1079.47501; Zbl 1100.15003

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