Group inverse for the block matrices with an invertible subblock |
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| Authors: | Changjiang Bu Min Li Lan Zheng |
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| Affiliation: | Dept. of Applied Math., College of Science, Harbin Engineering University, Nantong Street, Harbin 150001, PR China |
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| Abstract: | Let  (A is square) be a square block matrix with an invertible subblock over a skew field K. In this paper, we give the necessary and sufficient conditions for the existence as well as the expressions of the group inverse for M under some conditions. |
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| Keywords: | Skew field Group inverse Invertible subblock {1}-Inverse |
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