ON LINEAR PRESERVERS OF SGUT-MAJORIZATION ON Mn,m

被引:0
作者
Manesh, A. Ilkhanizadeh [1 ]
机构
[1] Vali E Asr Univ Rafsanjan, Dept Math, POB 7713936417, Rafsanjan, Iran
关键词
Linear preserver; strong linear preserver; g-row substochastic matrices; sgut-majorization; DOUBLY STOCHASTIC MATRICES;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let M-n,M-m be the set of n-by-m matrices with entries in the field of real numbers. A matrix R in M-n = M-n,M-n is a generalized row substochastic matrix (g-row substochastic, for short) if Re <= e, where e = (1, 1,...,1)(t). For X, Y is an element of M-n,M-m, X is said to be sgut-majorized by Y (denoted by X <(sgut) Y) if there exists an n-by-n upper triangular g-row substochastic matrix R such that X = RY. This paper characterizes all linear preservers and strong linear preservers of <(sgut) on R-n and M-n,M-m respectively.
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页码:470 / 481
页数:12
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