Linear preservers of even majorization on Mn,m

被引:13
作者
Soleymani, M. [1 ]
Armandnejad, A. [1 ]
机构
[1] Vali E Asr Univ Rafsanjan, Dept Math, Rafsanjan, Iran
关键词
even doubly stochastic matrix; even majorization; linear preserver; MATRICES;
D O I
10.1080/03081087.2013.832487
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let M-n,M-m be the algebra of all n x m real matrices. An n x n real matrix A is even doubly stochastic if it is a convex combination of even permutation matrices. For A, B is an element of M-n,M-m, A is said to be even majorized by B ( written as A <(e) B), if there exists an even doubly stochastic matrix D such that A = DB. In this paper, the concept of even majorization is investigated and then the linear preservers and strong linear preservers of this concept are characterized on M-n,M-m.
引用
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页码:1437 / 1449
页数:13
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