Affiliation:
1. Faculty of Medicine, University of Niš, Niš, Republic of Serbia
Abstract
In this paper, we investigate the recent paper of Shakoor et al. [A. Shakoor,
I. Ali, S. Wali, A. Rehman, Some formulas on the Drazin inverse for the sum
of two matrices and block matrices, Bull. Iran. Math. Soc. 48 (2022)
351-366]. Here we prove that the main, additive result from the mentioned
paper is actually a corollary of one known result. Furthermore, we give new
representations for the Drazin inverse of anti-triangular block matrix,
which generalize some representations from current literature on the topic.
Funder
Ministry of Education, Science and Technological Development of the Republic of Serbia
Publisher
National Library of Serbia
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