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Related papers: On depth in the local Langlands correspondence for…

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Let $K$ be a local field of characteristic $p$. We consider the local Langlands correspondence for tori, and construct examples for which depth is not preserved.

Representation Theory · Mathematics 2018-10-02 Roger Plymen

Let G be an inner form of a general linear group over a non-archimedean local field. We prove that the local Langlands correspondence for G preserves depths. We also show that the local Langlands correspondence for inner forms of special…

Representation Theory · Mathematics 2016-12-09 Paul Baum , Anne-Marie Aubert , Roger Plymen , Maarten Solleveld

We show new properties of the Langlands correspondence for arbitrary tori over local fields. Furthermore, we give a detailed analysis of depth-zero characters of reductive p-adic groups, for groups that may be wildly ramified. We present…

Number Theory · Mathematics 2025-02-04 Maarten Solleveld , Yujie Xu

We show that for a wildly ramified torus, depth is not preserved in general under local Langlands correspondence for tori.

Representation Theory · Mathematics 2021-06-18 Manish Mishra , Basudev Pattanayak

Let F be a non-archimedean local field. We establish the local Langlands correspondence for all inner forms of the group $SL_n (F)$. It takes the form of a bijection between, on the one hand, conjugacy classes of Langlands parameters for…

Representation Theory · Mathematics 2016-12-09 Anne-Marie Aubert , Paul Baum , Roger Plymen , Maarten Solleveld

We introduce a revised notion of depth for Langlands parameters for tori defined over a nonarchimedean local field \(F\) that restores depth preservation under the local Langlands correspondence (LLC). We leverage that preservation to…

Representation Theory · Mathematics 2026-01-30 Manish Mishra

We consider the group $SL_2(K)$, where $K$ is a local non-archimedean field of characteristic two. We prove that the depth of any irreducible representation of $SL_2 (K)$ is larger than the depth of the corresponding Langlands parameter,…

Representation Theory · Mathematics 2019-01-28 Anne-Marie Aubert , Sergio Mendes , Roger Plymen , Maarten Solleveld

Smooth irreducible representations of tori over local fields have been parameterized by Langlands, using class field theory and Galois cohomology. This paper extends this parameterization to central extensions of such tori, which arise…

Representation Theory · Mathematics 2008-03-13 Martin H. Weissman

In this paper, we give an explicit determination of the theta lifting for symplectic-orthogonal and unitary dual pairs over a nonarchimedean field $F$ of characteristic $0$. We determine when theta lifts of tempered representations are…

Number Theory · Mathematics 2017-11-22 Hiraku Atobe , Wee Teck Gan

We discuss progress towards the classification of irreducible admissible representations of reductive groups over non-archimedean local fields and the local Langlands correspondence. We also state some (partly conjectural) compatibility…

Representation Theory · Mathematics 2022-02-03 Tasho Kaletha

We conjecture an explicit formula for the higher dimensional Dirichlet character; the formula is based on the K-theory of the so-called noncommutative tori. It is proved, that our conjecture is true for the two-dimensional and…

Operator Algebras · Mathematics 2011-08-23 Igor Nikolaev

This work is intended as an introduction to the statement and the construction of the local Langlands correspondence for GL(n) over p-adic fields. The emphasis lies on the statement and the explanation of the correspondence.

Algebraic Geometry · Mathematics 2007-05-23 T. Wedhorn

Let $K$ be a finite extension of $\mathbb{Q}_p$. We study the geometry and cohomology of the tamely ramified cover of Drinfeld's symmetric space over $K.$ We prove, in a purely local way, that the cohomology in middle degree realises the…

Number Theory · Mathematics 2014-11-06 Haoran Wang

It is expected that, under mild conditions, local Langlands correspondence preserves depths of representations. In this article, we formulate a conjectural geometrisation of this expectation. We prove half of this conjecture by showing that…

Representation Theory · Mathematics 2014-04-03 Tsao-Hsien Chen , Masoud Kamgarpour

The Langlands correspondence of GL(2,F) over a non-Archimedean local field F of characteristic 0 has been well studied. The construction uses the theta correspondence. In this paper, we are going to describe explicitly how this construction…

Representation Theory · Mathematics 2015-11-13 Ran Cui

The local Langlands correspondence for GL(n) of a non-Archimedean local field $F$ parametrizes irreducible admissible representations of $GL(n,F)$ in terms of representations of the Weil-Deligne group $WD_F$ of $F$. The correspondence,…

Number Theory · Mathematics 2007-05-23 Michael Harris

We determine the finite group $\mathcal S$ parametrizing a packet in the local Langlands correspondence for a Brylinski-Deligne covering group of an algebraic torus, under some assumption on ramification. Especially, this work generalizes…

Number Theory · Mathematics 2026-03-03 Yuki Nakata

Let $E/F$ be a finite and Galois extension of non-archimedean local fields. Let $G$ be a connected reductive group defined over $E$ and let $M: = \mathfrak{R}_{E/F}\, G$ be the reductive group over $F$ obtained by Weil restriction of…

Representation Theory · Mathematics 2020-07-03 Anne-Marie Aubert , Roger Plymen

Let G be a connected reductive group over a non-archimedean local field K, and assume that G splits over an unramified extension of K. We establish a local Langlands correspondence for irreducible unipotent representations of G. It comes as…

Representation Theory · Mathematics 2023-09-12 Maarten Solleveld

Let $\ell$ be a prime number different from the residue characteristic of a non-archimedean local field $F$. We give formulations of $\ell$-adic local Langlands correspondences for connected reductive algebraic groups over $F$, which we…

Number Theory · Mathematics 2024-08-27 Naoki Imai
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