On a partial order defined by the weighted Moore-Penrose inverse

被引:22
作者
Hernandez, A. [1 ]
Lattanzi, M. [2 ]
Thome, N. [3 ]
机构
[1] Univ Nacl La Pampa, Fac Ingn, Gen Pico, La Pampa, Argentina
[2] Univ Nacl La Pampa, Fac Ciencias Exactas & Nat, Santa Rosa, La Pampa, Argentina
[3] Univ Politecn Valencia, Inst Univ Matemat Multidisciplinar, Valencia 46022, Spain
关键词
Weighted Moore-Penrose inverse; Weighted-EP matrix; Weighted star partial order; Eigenprojection; MATRIX PARTIAL ORDERINGS;
D O I
10.1016/j.amc.2013.02.010
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The weighted Moore-Penrose inverse of a matrix can be used to define a partial order on the set of m x n complex matrices and to introduce the concept of weighted-EP matrices. In this paper we study the weighted star partial order on the set of weighted-EP matrices. In addition, some properties that relate the eigenprojection at zero with the weighted star partial order are obtained. (C) 2013 Elsevier Inc. All rights reserved.
引用
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页码:7310 / 7318
页数:9
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