Additive results for the Drazin inverse of block matrices and applications
Additive results for the Drazin inverse of block matrices and applications
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DOI:
10.1016/j.cam.2011.02.029
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发表时间:
2011-04
期刊:
影响因子:
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通讯作者:
Jelena Ljubisavljevic;D. Cvetković-Ilić
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文献类型:
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作者:
Jelena Ljubisavljevic;D. Cvetković-Ilić
In this paper, we consider the Drazin inverse of a sum of two matrices and derive additive formulas under conditions weaker than those used in some recent papers on the subject. As a corollary we get the main results from the paper of Yang and Liu [H. Yang, X. Liu, The Drazin inverse of the sum of two matrices and its applications, J. Comput. Appl. Math. 235 (2011) 1412–1417]. As an application we give some new representations for the Drazin inverse of a block matrix.