English
Related papers

Related papers: Geometric Langlands for hypergeometric sheaves

200 papers

In a previous paper, the first and third authors gave an explicit realization of the geometric Langlands correspondence for hypergeometric sheaves, considered as $\textrm{GL}_n$-local systems. Certain hypergeometric local systems admit a…

Algebraic Geometry · Mathematics 2022-01-21 Masoud Kamgarpour , Daxin Xu , Lingfei Yi

From a stable vector of a stable grading on a simple Lie algebra, Yun defined a rigid automorphic datum that encodes a epipelagic representation, and also an irregular connection on the projective line called $\theta$-connection. We show…

Representation Theory · Mathematics 2024-10-10 Tsao-Hsien Chen , Lingfei Yi

In this paper we first review the setting for the geometric Langlands functoriality and establish a result for the `backward' functoriality functor. We illustrate this by known examples of the geometric theta-lifting. We then apply the…

Representation Theory · Mathematics 2021-01-05 Sergey Lysenko

We propose a geometric interpretation of the classical Rankin-Selberg method for GL(n) in the framework of the geometric Langlands program. We show that the geometric Langlands conjecture for an irreducible unramified local system $E$ of…

Algebraic Geometry · Mathematics 2007-05-23 Sergey Lysenko

The aim of these notes is to generalize Laumon's construction [18] of automorphic sheaves corresponding to local systems on a smooth, projective curve $C$ to the case of local systems with indecomposable unipotent ramification at a finite…

Algebraic Geometry · Mathematics 2007-05-23 Jochen Heinloth

For a reductive group $G$, we prove that complex irreducible rigid $G$-local systems with quasi-unipotent monodromies and finite order abelianization on a smooth curve are motivic, generalizing a theorem of Katz for $GL_n$. We do so by…

Algebraic Geometry · Mathematics 2024-07-30 Joakim Færgeman

We construct a class of $\ell$-adic local systems on $\mathbb{A}^1$ that generalizes the Airy sheaves defined by N. Katz to reductive groups. These sheaves are finite field analogues of generalizations of the classical Airy equation…

Algebraic Geometry · Mathematics 2024-02-06 Konstantin Jakob , Masoud Kamgarpour , Lingfei Yi

We formulate a conjecture on local geometric Langlands for supercuspidal representations using Yu's data and Feigin-Frenkel isomorphism. We refine our conjecture for a large family of regular supercuspidal representations defined by…

Representation Theory · Mathematics 2025-06-23 Lingfei Yi

We prove that cuspidal automorphic D-modules have non-vanishing Whittaker coefficients, generalizing known results in the geometric Langlands program from GL_n to general reductive groups. The key tool is a microlocal interpretation of…

Representation Theory · Mathematics 2022-07-08 Joakim Faergeman , Sam Raskin

The article is a contribution to the local theory of geometric Langlands correspondence. The main result is a categorification of the isomorphism between the (extended) affine Hecke algebra, thought of as an algebra of Iwahori bi-invariant…

Representation Theory · Mathematics 2021-10-14 Roman Bezrukavnikov

We define a new geometric object--the stack of local systems with restricted variation. We formulate a version of the categorical geometric Langlands conjecture that makes sense for any constructible sheaf theory (such as l-adic sheaves).…

Algebraic Geometry · Mathematics 2022-04-07 D. Arinkin , D. Gaitsgory , D. Kazhdan , S. Raskin , N. Rozenblyum , Y. Varshavsky

Let X be a smooth, complete, geometrically connected curve over a field of characteristic p. The geometric Langlands conjecture states that to each irreducible rank n local system E on X one can attach a perverse sheaf on the moduli stack…

Algebraic Geometry · Mathematics 2007-05-23 E. Frenkel , D. Gaitsgory , K. Vilonen

The recent proof of the unramified Geometric Langlands Conjecture has attracted a lot of publicity, so this seems like a good time to address the title question. In one line, the Geometric Langlands correspondence is an algebraic spectral…

Representation Theory · Mathematics 2026-05-25 David Ben-Zvi

We introduce graded Hecke algebras H based on a (possibly disconnected) complex reductive group G and a cuspidal local system L on a unipotent orbit of a Levi subgroup M of G. These generalize the graded Hecke algebras defined and…

Representation Theory · Mathematics 2019-01-28 Anne-Marie Aubert , Ahmed Moussaoui , Maarten Solleveld

Let X be a smooth projective connected curve over an algebraically closed field k of positive characteristic. Let G be a reductive group over k, \gamma be a dominant coweight for G, and E be an \ell-adic \check{G}-local system on X, where…

Representation Theory · Mathematics 2016-09-07 Sergey Lysenko

We propose a new method to construct rigid $G$-automorphic representations and rigid $\widehat{G}$-local systems for reductive groups $G$. The construction involves the notion of euphotic representations, and the proof for rigidity involves…

Algebraic Geometry · Mathematics 2023-01-24 Konstantin Jakob , Zhiwei Yun

We study the Geometric Langlands Conjecture (GLC) for rank two flat bundles on the projective line $C$ with tame ramification at five points $\{p_{1}, p_{2}, p_{3}, p_{4}, p_{5} \}$. In particular we construct the automorphic $D$-modules…

Algebraic Geometry · Mathematics 2022-07-28 Ron Donagi , Tony Pantev

The global geometric Langlands correspondence relates Hecke eigensheaves on the moduli stack of G-bundles on a smooth projective algebraic curve X and holomorphic G'-bundles with connection on X, where G' is the Langlands dual group of G.…

Quantum Algebra · Mathematics 2007-05-23 Edward Frenkel

Let $G$ and $\tilde G$ be reductive groups over a local field $F$. Let $\eta : \tilde G \to G$ be a $F$-homomorphism with commutative kernel and commutative cokernel. We investigate the pullbacks of irreducible admissible…

Representation Theory · Mathematics 2020-01-22 Maarten Solleveld

Following Laumon [10], to a nonramified $\ell$-adic local system $E$ of rank $n$ on a curve $X$ one associates a complex of $\ell$-adic sheaves $_n{\cal K}_E$ on the moduli stack of rank $n$ vector bundles on $X$ with a section, which is…

Algebraic Geometry · Mathematics 2007-05-23 Sergey Lysenko
‹ Prev 1 2 3 10 Next ›