Fixed Points of Zircon Automorphisms

被引：0
|
作者：
Axel Hultman
机构：
[1] Kungliga Tekniska Högskolan,Department of Mathematics
来源：
Order | 2008年 / 25卷
关键词：
Zircon; Special matching; Poset automorphism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A zircon is a poset in which every principal order ideal is finite and equipped with a so-called special matching. We prove that the subposet induced by the fixed points of any automorphism of a zircon is itself a zircon. This provides a natural context in which to view recent results on Bruhat orders on twisted involutions in Coxeter groups.
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页码：85 / 90
页数：5
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