Breuil-Mézard conjectures for central division algebras

Fuente: arXiv
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Autore principale: Dotto, Andrea
Natura: Preprint
Pubblicazione: 2018
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author Dotto, Andrea
author_facet Dotto, Andrea
contents We formulate an analogue of the Breuil-Mézard conjecture for the group of units of a central division algebra over a $p$-adic local field, and we prove that it follows from the conjecture for $\mathrm{GL}_n$. To do so we construct a transfer of inertial types and Serre weights between the maximal compact subgroups of these two groups, in terms of Deligne-Lusztig theory, and we prove its compatibility with mod $p$ reduction, via the inertial Jacquet-Langlands correspondence and certain explicit character formulas. We also prove analogous statements for $\ell$-adic coefficients.
format Preprint
id arxiv_https___arxiv_org_abs_1808_06851
institution arXiv
publishDate 2018
record_format arxiv
spellingShingle Breuil-Mézard conjectures for central division algebras
Dotto, Andrea
Number Theory
Representation Theory
We formulate an analogue of the Breuil-Mézard conjecture for the group of units of a central division algebra over a $p$-adic local field, and we prove that it follows from the conjecture for $\mathrm{GL}_n$. To do so we construct a transfer of inertial types and Serre weights between the maximal compact subgroups of these two groups, in terms of Deligne-Lusztig theory, and we prove its compatibility with mod $p$ reduction, via the inertial Jacquet-Langlands correspondence and certain explicit character formulas. We also prove analogous statements for $\ell$-adic coefficients.
title Breuil-Mézard conjectures for central division algebras
topic Number Theory
Representation Theory
url https://arxiv.org/abs/1808.06851