Ordinary $GL_2(F)$-representations in characteristic two via affine Deligne-Lusztig constructions
Algebraic Geometry
2018-02-08 v1 Representation Theory
Abstract
The group over a local field with (residue) characteristic possesses much more smooth supercuspidal -adic representations, than over a local field of residue characteristic . One way to construct these representations is via the theory of types of Bushnell-Kutzko. We construct many of them in the cohomology of certain extended affine Deligne-Lusztig varieties attached to and wildly ramified maximal tori in it. Then we compare our construction with the type-theoretic one. The corresponding extended affine Deligne-Lusztig varieties were introduced in a preceding article. Also in the present case they turn out to be zero-dimensional.
Keywords
Cite
@article{arxiv.1802.02456,
title = {Ordinary $GL_2(F)$-representations in characteristic two via affine Deligne-Lusztig constructions},
author = {Alexander B. Ivanov},
journal= {arXiv preprint arXiv:1802.02456},
year = {2018}
}
Comments
27 pages