关于Drazin逆逆序律的一个注记(英文)

On the Reverse Order Law (AB)D=BDAD

英文关键词:Drazin inverse, Moore-Penrose inverse, reverse order law.

中文摘要:

      本文利用矩阵间秩的关系给出Ｄｒａｚｉｎ逆逆序律成立的一个充分必要条件

英文摘要:

      By using the ranks of matrices, necessary and sufficient conditions are presented for the two term reverse order law (AB)^D=B^DA^D to hold.