Representations for the Drazin inverses of block matrices
1 Department of Mathematics, Southeast University, Nanjing, China
2 College of Mathematics, Beihua University, Jilin, China
In this paper, we investigate representations of the Drazin inverse of a 2 × 2 block matrix. The Drazin inverse of a matrix is very important in various applied mathematical fields like machinery and automation, singular differential equations. We give a explicit representation of the Drazin inverse of a block matrix.
Key words: Block matrix / Drazin inverse / Index
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