Affine Deligne-Lusztig varieties of higher level and the local Langlands correspondence for $GL_2$
Affine Deligne-Lusztig varieties of higher level and the local Langlands correspondence for $GL_2$
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更高级别的 Affine Deligne-Lusztig 品种和 $GL_2$ 的当地 Langlands 对应关系
DOI:
10.1016/j.aim.2016.05.019
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
A. Ivanov
中科院分区:
文献类型:
--
作者:
A. Ivanov
In the present article we define coverings of affine Deligne–Lusztig varieties attached to a connected reductive group over a non-archimedean local field. In the case of GL 2 and positive characteristic, the unramified cuspidal part of the local Langlands correspondence is realized in the ℓ-adic cohomology of these varieties. We show this by giving a detailed comparison with the realization of local Langlands via cuspidal types by Bushnell–Henniart. All proofs are purely local.