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arXiv · 1912.12312

Deligne-Lusztig varieties and basic EKOR strata

Haining Wang
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Abstract

Under the axiom of He and Rapoport for the stratifications of Shimura varieties, we explain a result of G\"{o}rtz, He and Nie that the EKOR strata contained in the basic loci can be described as a disjoint union of Deligne-Lusztig varieties. In the special case of Siegel modular varieties, we compare their descriptions to that of G\"{o}rtz and Yu for the supersingular Kottwitz-Rapoport strata and to the descriptions of Harashita, Hoeve for the supersingular Ekedahl-Oort strata.

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Haining Wang. 2019-12-27. Deligne-Lusztig varieties and basic EKOR strata. https://arxiv.org/abs/1912.12312

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