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Representations for the Drazin inverse of the generalized Schur complement

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 Added by Daochang Zhang
 Publication date 2013
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and research's language is English




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In this paper we present expressions for the Drazin inverse of the generalized Schur complement $A-CD^{d}B$ in terms of the Drazin inverses of $A$ and the generalized Schur complement $D-BA^{d}C$ under less and weaker restrictions, which generalize several results in the literature and the formula of Sherman-Morrison-Woodbury type.



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