A note on generalized G-matrices
A note on generalized G-matrices
复制标题
关于广义 G 矩阵的注释
DOI:
10.1016/j.laa.2011.12.011
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发表时间:
2012
影响因子:
1.1
通讯作者:
Masaya Matsuura
中科院分区:
文献类型:
--
作者:
Masaya Matsuura
In this paper, we slightly generalize the notion of G-matrices, which has been recently introduced. A real nonsingular matrix A is called a G-matrix if there exist nonsingular diagonal matrices D1and D2such that D1ATD2=A-1. We generalize this definition to the case where A can be singular. We say that a real matrix A, which is not necessarily square, is a generalized G-matrix (GG-matrix) if there exist nonsingular diagonal matrices D1and D2such that D1ATD2is a g-inverse of A. The main purpose of this paper is to show that any generalized Cauchy matrix is a GG-matrix.