Factorizations of EP operators

被引：41

作者：

Drivaliaris, Dimosthenis ^{[1
]}

Karanasios, Sotirios ^{[2
]}

Pappas, Dimitrios ^{[3
]}

机构：

[1] Univ Aegean, Dept Financial & Management Engn, Chios 82100, Greece

[2] Natl Tech Univ Athens, Dept Math, Zografos 15780, Greece

[3] Univ Piraeus, Dept Stat & Insurance Sci, Piraeus 18534, Greece

来源：

LINEAR ALGEBRA AND ITS APPLICATIONS | 2008年 / 429卷 / 07期

关键词：

EP operator; EP matrix; range hermitian matrix; factorization; generalized inverse; Moore-Penrose inverse;

D O I：

10.1016/j.laa.2008.04.026

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In this paper, we characterize EP operators through the existence of different types of factorizations. Our results extend to EP operators existing characterizations for EP matrices and give new characterizations both for EP matrices and EP operators. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：1555 / 1567

页数：13

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