A new characterization of nonnegativity of Moore-Penrose inverses of Gram operators

被引：6
|
作者：
Sivakumar, K. C. [1 ]
机构：
[1] Indian Inst Technol Madras, Dept Math, Madras 600036, Tamil Nadu, India
来源：
POSITIVITY | 2009年 / 13卷 / 01期
关键词：
Gram operator; nonnegative Moore-Penrose inverse; acute cones; obtuse cones; MATRICES; MONOTONICITY; CONE;
D O I：
10.1007/s11117-008-2167-1
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
In this article, a new characterization for the nonnegativity of Moore-Penrose inverses of Gram operators over Hilbert spaces is presented. The main result generalizes the existing result for invertible Gram operators.
引用
收藏
页码：277 / 286
页数：10
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