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arXiv · 0807.2786

On the connectedness of Deligne-Lusztig varieties

Ulrich Goertz
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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.

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Ulrich Goertz. 2008-08-19. On the connectedness of Deligne-Lusztig varieties. https://arxiv.org/abs/0807.2786

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