Weak Generalized Lifting Property, Bruhat Intervals, and Coxeter Matroids

被引:5
|
作者
Caselli, Fabrizio [1 ]
D'Adderio, Michele [2 ]
Marietti, Mario [3 ]
机构
[1] Univ Bologna, Dipartimento Matemat, Piazza Porta San Donato 5, I-40126 Bologna, Italy
[2] Univ Libre Bruxelles ULB, Dept Math, Blvd Triomphe, B-1050 Brussels, Belgium
[3] Univ Politecn Marche, Dipartimento Ingn Ind & Sci Matemat, Via Brecce Bianche, I-60131 Ancona, Italy
关键词
D O I
10.1093/imrn/rnaa124
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We provide a weaker version of the generalized lifting property that holds in complete generality for all Coxeter groups, and we use it to show that every parabolic Bruhat interval of a finite Coxeter group is a Coxeter matroid. We also describe some combinatorial properties of the associated polytopes.
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页码:1678 / 1698
页数:21
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