The existence and the representations for the group inverse of block matrices under some conditions
Wen un Zhu, Bin Deng · Operators and Matrices · 2016
In this paper, we give the existence and the representations for the group inverse of block matrices M = M 1 A B D having a sub-block M 1 which is a combination of sub-block A and B , and give the existence and the representations for the group inverse of block matrices A B C D under some conditions. Finally, some numerical examples are given to illustrate our results.