On the connectedness of Deligne-Lusztig varieties
Algebraic Geometry
2008-08-19 v2
Abstract
We give a criterion which determines when a union of one-dimensional Deligne-Lusztig varieties has a connected closure. We also obtain a new, short proof of the connectedness criterion for Deligne-Lusztig varieties due to Lusztig.
Keywords
Cite
@article{arxiv.0807.2786,
title = {On the connectedness of Deligne-Lusztig varieties},
author = {Ulrich Goertz},
journal= {arXiv preprint arXiv:0807.2786},
year = {2008}
}
Comments
v2: Revised Section 3, added Section 4. 6 pages