MORE ON EXTREMAL POSITIVE SEMIDEFINITE DOUBLY STOCHASTIC MATRICES

被引：3
|
作者：
SHAKEDMONDERER, N
BERMAN, A
机构：
[1] Department of Mathematics Technion-Israel Institute of Technology Haifa
来源：
LINEAR ALGEBRA AND ITS APPLICATIONS | 1992年 / 167卷
关键词：
D O I：
10.1016/0024-3795(92)90336-9
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Let K(n) be the convex set of n x n positive semidefinite doubly stochastic matrices. We show that for matrices with a special type of graph extremality can be determined by graph and rank. We also give a complete classification of the extreme matrices in K5, and in particular give examples of two matrices in K5 with the same graph and rank, one extreme and one not.
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页码：17 / 34
页数：18
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