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Heike Harenbrock

Mittagsseminar zur Arithmetik: Damien Junger (Münster): De Rahm cohomology of the tame cover in the Lubin-Tate tower

Tuesday, 17.10.2023 10:15 im Raum SRZ 216/217

Mathematik und Informatik

Drinfeld has constructed two towers of covers $(\mathcal{M}^n_{LT})_n$ and $(\mathcal{M}^n_{Dr})_n$ as deformation spaces of formal modules. It is known that the supercuspidal part of the geometric étale $\ell$-adique cohomology with compact support of these spaces provides geometric realizations of local Langlands and Jacquet-Langlands correspondances. We would like to establish the same correspondances for De Rham cohomology with compact support. We will explain how we could hope for a proof of these result in the particular case of the first cover of the Lubin-Tate by adapting the methods in Yoshida's thesis he exhibits a link between the geometry of these spaces and Deligne-Lusztig variety. It relies on the generalisation of an excision theorem of Grosse-Klönne, already used to prove the analogus result on the Drinfeld side.



Angelegt am Monday, 16.10.2023 09:39 von Heike Harenbrock
Geändert am Monday, 16.10.2023 09:39 von Heike Harenbrock
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