2×2 block representations of the Moore-Penrose inverse and orthogonal projection matrices

2021/02/03 by Fritzsche, Bernd, Mädler, Conrad
#15A09 (Primary) 15A23 (Secondary) #FOS: Mathematics #Rings and Algebras (math.RA)

paper · doi:10.48550/arxiv.2102.02101

Abstract

In this paper, new block representations of Moore-Penrose inverses for arbitrary complex 2×2 block matrices are given. The approach is based on block representations of orthogonal projection matrices.

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