Representations for the Drazin inverse of block matrices

Guanjie Yan, Xiaolan Qin, Xiaoji Liu, Yaoming Yu

Abstract


In this paper two explicit representations for the Drazin inverse of a \(2 \times 2\) block complex matrix \(M\) are presented. Moreover, we also present several other representations for the Drazin inverse of \(M\) under some conditions and generalize some results in literature.


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