Geometric structure of affine Deligne-Lusztig varieties for GL3

Geometric structure of affine Deligne-Lusztig varieties for GL3
复制标题

DOI:
10.1016/j.jalgebra.2023.02.015
复制
发表时间:
2021-02
期刊:
影响因子:
0.9
通讯作者:
Ryosuke Shimada
Ryosuke Shimada
中科院分区:
数学3区
文献类型:
--
作者:
Ryosuke Shimada

文献摘要

相似文献

本文研究了GL 3和B基的仿射Deligne-Lusztig簇X λ(B)的几何结构.我们完全确定的仿射Deligne-Lusztig品种的不可约组件。特别是,我们分类的情况下,所有的不可约组件是经典的Deligne-Lusztig品种倍有限维仿射空间。如果是这种情况,则不可约分量是成对不相交的。
In this paper we study the geometric structure of affine Deligne-Lusztig varieties X λ (b) for GL 3 and b basic. We completely determine the irreducible components of the affine Deligne-Lusztig variety. In particular, we classify the cases where all of the irreducible components are classical Deligne-Lusztig varieties times finite-dimensional affine spaces. If this is the case, then the irreducible components are pairwise disjoint.