On additive properties of the Drazin inverse of block matrices and representations

Jelena Višnjić

Applied Mathematics and Computation, 2015, vol. 250, issue C, 444-450

Abstract: In this paper, we give a new additive formula for the Drazin inverse under conditions weaker than those used in some current literature on this subject. Also, we obtain representations for the Drazin inverse of a complex block matrix having generalized Schur complement equal to zero.

Keywords: Drazin inverse; Block matrix; Additive formula (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:250:y:2015:i:c:p:444-450

DOI: 10.1016/j.amc.2014.11.006

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