摘要
给出了矩阵积的(T,S,2) 逆的反序律成立的充分必要条件.这一结果适用于包括Moore Penrose逆、Drazin逆等在内的大多数常用广义逆矩阵.另外,证明了等式(AB)+MP=(A+MNAB)+NP(ABB+NP)+MN.
The necessary and sufficient condition for the validity of the reverse order law for the (T,S,2)-inverse of a matrix product is given. This result applies to the most of the commonly used generalized inverses of matrices including the Moore-Penrose inverse, the Drazin inverse and the others. In addition, the equality (AB)^+_(MP)=(A^+_(MN)AB)^+_(NP)(ABB^+_(NP))^+_(MN) is proved.
出处
《南京师大学报(自然科学版)》
CAS
CSCD
2004年第3期12-16,共5页
Journal of Nanjing Normal University(Natural Science Edition)
关键词
(T
S
2)-广义逆
反序律
矩阵积
(T,S,2)-generalized inverse, reverse order law, matrix product