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.
机构:
Univ Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA
Univ Calif Santa Barbara, Coll Creat Studies, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA
Cachadina, Maria Isabel Bueno
Furtado, Susana
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h-index: 0
机构:
Univ Porto, CEAFEL, Porto, Portugal
Univ Porto, Fac Econ, Porto, PortugalUniv Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA
Furtado, Susana
Sivakumar, K. C.
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h-index: 0
机构:
Indian Inst Technol Madras, Dept Math, Chennai 600036, Tamil Nadu, IndiaUniv Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA