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In this paper we prove the Aubert-Baum-Plymen-Solleveld conjecture for the split classical groups and establish the connection with the Langlands correspondence. To do this, we review the notion of cuspidality for enhanced Langlands…

Representation Theory · Mathematics 2016-04-15 Ahmed Moussaoui

We study the endomorphism algebras attached to Bernstein components of reductive $p$-adic groups and construct a local Langlands correspondence with the appropriate set of enhanced $L$-parameters, using certain "desiderata" properties for…

Representation Theory · Mathematics 2022-11-30 Anne-Marie Aubert , Yujie Xu

Let H be any reductive p-adic group. We introduce a notion of cuspidality for enhanced Langlands parameters for H, which conjecturally puts supercuspidal H-representations in bijection with such L-parameters. We also define a cuspidal…

Representation Theory · Mathematics 2025-05-09 Anne-Marie Aubert , Ahmed Moussaoui , Maarten Solleveld

Let G be a classical p-adic group and $(\psi ,\epsilon)$ the Langlands parameter of an irreducible supercuspidal representation of a Levi subgroup of G. Using data from $(\psi ,\epsilon)$, we determine explicitly the intertwining algebra of…

Representation Theory · Mathematics 2009-10-06 Volker Heiermann

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 G be any reductive p-adic group. We discuss several conjectures, some of them new, that involve the representation theory and the geometry of G. At the heart of these conjectures are statements about the geometric structure of Bernstein…

Representation Theory · Mathematics 2018-07-02 Anne-Marie Aubert , Paul Baum , Roger Plymen , Maarten Solleveld

By computing reducibility points of parabolically induced representations, we construct, to within at most two unramified quadratic characters, the Langlands parameter of an arbitrary depth zero irreducible cuspidal representation $\pi$ of…

Representation Theory · Mathematics 2020-07-08 Jaime Lust , Shaun Stevens

We prove a result which provides a link between the decomposition of parabolically induced representations and the Bushnell--Kutzko theory of typical representations. As an application, we show that there exists a well-defined inertial…

Representation Theory · Mathematics 2021-05-10 Peter Latham

For classical groups we show the isomorphism of the Knapp-Stein $R$-group, which describes the structure of parabolically induced representations, and the Arthur $R$-group of the parameter associated to the inducing representation by the…

Representation Theory · Mathematics 2011-03-02 Dubravka Ban , David Goldberg

We construct the local Langlands correspondence of essentially unipotent supercuspidal representations under the framework of rigid inner forms and prove a certaion functoriality and compatibilities. This result is stronger than the…

Representation Theory · Mathematics 2026-05-20 Amoru Fujii

A paper of Reeder-Yu gives a construction of epipelagic supercuspidal representations of $p$-adic groups. The input for this construction is a pair $(\lambda, \chi)$ where $\lambda$ is a stable vector in a certain representation coming from…

Representation Theory · Mathematics 2024-03-19 Beth Romano

We state a conjecture, local Langlands in families, connecting the centre of the category of smooth representations on $\mathbb{Z}[\sqrt{q}^{-1}]$-modules of a quasi-split $p$-adic group $\mathrm{G}$ (where $q$ is the cardinality of the…

Representation Theory · Mathematics 2024-09-24 Jean-François Dat , David Helm , Robert Kurinczuk , Gilbert Moss

We consider distinction of representations in the context of $p$-adic Galois symmetric spaces. We provide new sufficient conditions for distinction of parabolically induced representations in terms of similar conditions on the inducing data…

Representation Theory · Mathematics 2022-07-19 Nadir Matringe , Omer Offen

We construct a pinning-normalized local Langlands correspondence for depth-zero supercuspidal representations of a connected reductive group over a non-archimedean local field. After fixing a pinned splitting of the quasi-split inner form,…

Representation Theory · Mathematics 2026-05-15 Manish Mishra

We adapt the conjectural local Langlands parameterization to split metaplectic groups over local fields. When $\tilde G$ is a central extension of a split connected reductive group over a local field (arising from the framework of Brylinski…

Representation Theory · Mathematics 2011-08-09 Martin H. Weissman

Let $K$ be a local non-Archimedean field of positive characteristic and let $L$ be the degree-$n$ unramified extension of $K$. Via the local Langlands and Jacquet-Langlands correspondences, to each sufficiently generic multiplicative…

Representation Theory · Mathematics 2015-07-21 Charlotte Chan

For a connected reductive group $G$ over a non-archime\-dean local field $F$ of positive characteristic, Genestier and Lafforgue have attached a semisimple parameter $\CL^{ss}(\pi)$ to each irreducible representation $\pi$. Our first result…

Representation Theory · Mathematics 2024-11-20 Wee Teck Gan , Michael Harris , Will Sawin , Raphaël Beuzart-Plessis

Let F be a non-archimedean local field and let G be a connected reductive group defined over F. We assume that G splits over a tame extension of F and that the residual characteristic p does not divide the order of the Weyl group. To each…

Representation Theory · Mathematics 2021-02-15 Tasho Kaletha

For a classical group over a non-archimedean local field of odd residual characteristic p, we prove that two cuspidal types, defined over an algebraically closed field C of characteristic different from p, intertwine if and only if they are…

Representation Theory · Mathematics 2020-09-01 Robert Kurinczuk , Daniel Skodlerack , Shaun Stevens

In the case of p-adic general linear groups, each irreducible representation is parabolically induced by a tensor product of irreducible representations supported by cuspidal lines. One gets in this way a parameterization of the irreducible…

Representation Theory · Mathematics 2020-10-30 Marko Tadic
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