Automorphisms of the poset of upper triangular idempotent matrices

被引:9
|
作者
Fosner, A [1 ]
机构
[1] Univ Maribor, PeF, Dept Math, SI-2000 Maribor, Slovenia
来源
LINEAR & MULTILINEAR ALGEBRA | 2005年 / 53卷 / 01期
关键词
upper triangular idempotent matrices; automorphisms of the poset; orthogonality preservers;
D O I
10.1080/03081080410001711834
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We obtain the general form of orthogonality preserving automorphisms of the poset of all n x n upper triangular idempotent matrices over an arbitrary field F. We also give examples showing that the assumption of preserving orthogonality is essential.
引用
收藏
页码:27 / 44
页数:18
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