分块矩阵Drazin逆表示的一些结果(英文)

Some representations of the Drazin inverse for block matrices

给出了分块矩阵(ABC0)在满足ADBC=0,ABCAπ=0时的Drazin逆表达式,推广了[12]的结论;并且也给出了分块矩阵(ABCO)在BCAAD=0,AπBC=0时的Drazin逆表达式。

The representation of the Drazin inverse for block matrix （ABCO） is given under conditions ADBC=0,ABCAπ=0,which generalizes the result of Chunyuan Deng in.Also,the representation of the Drazin inverse for block matrix （ABCO） is given under conditions BCAA^D=0,A^πBC=0.