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We establish a number of "concatenation theorems" that assert, roughly speaking, that if a function exhibits "polynomial" (or "Gowers anti-uniform", "uniformly almost periodic", or "nilsequence") behaviour in two different directions…

Combinatorics · Mathematics 2017-01-18 Terence Tao , Tamar Ziegler

In this paper a proof of Conjecture 9.12 of Braverman and Kazhdan in their article "gamma-functions of representations and lifting" on the acyclicity of their l-adic gamma-sheaves over certain affine spaces is given for GL(n).

Algebraic Geometry · Mathematics 2025-08-22 S. Cheng , B. C. Ngo

This is the final paper in the series of five, in which we prove the geometric Langlands conjecture (GLC). We conclude the proof of GLC by showing that there exists a unique (up to tensoring up by a vector space) Hecke eigensheaf…

Algebraic Geometry · Mathematics 2026-01-19 Dennis Gaitsgory , Sam Raskin

Let G be a connected reductive group defined over a non-archimedean local field of characteristic 0. We assume G is quasi-split, adjoint and absolutly simple. Let g be the Lie algebra of G. We consider the space of the invariant…

Representation Theory · Mathematics 2025-09-15 Jean-Loup Waldspurger

Let $X$ be a nonempty real variety that is invariant under the action of a reflection group $G$. We conjecture that if $X$ is defined in terms of the first $k$ basic invariants of $G$ (ordered by degree), then $X$ meets a $k$-dimensional…

Algebraic Geometry · Mathematics 2017-06-08 Tobias Friedl , Cordian Riener , Raman Sanyal

Consider a finite sequence of permutations of the elements 1,...,n, with the property that each element changes its position by at most 1 from any permutation to the next. We call such a sequence a tangle, and we define a move of element i…

Combinatorics · Mathematics 2015-08-18 Sergey Bereg , Alexander E. Holroyd , Lev Nachmanson , Sergey Pupyrev

This is the fourth paper in a series. We prove a conjecture made independently by Boston et al and Shalev. The conjecture asserts that there is an absolute positive constant delta such that if G is a finite simple group acting transitively…

Group Theory · Mathematics 2015-08-04 Jason Fulman , Robert Guralnick

We use representation theory of the symmetric group S_n to prove Poisson limit theorems for the distribution of fixed points for three types of non-uniform permutations. First, we give results for the commutator of g and x where g and x are…

Combinatorics · Mathematics 2024-06-28 Jason Fulman

We prove relative versions of many earlier results about almost invariant sets and splittings of groups. In particular, we prove a relative version of the algebraic torus theorem, and we prove the existence and uniqueness of relative…

Geometric Topology · Mathematics 2025-02-04 Peter Scott , Gadde Swarup

Let $G$ be the alternating group of degree $n$. Let $\omega(G)$ be the maximal size of a subset $S$ of $G$ such that $\langle x,y \rangle = G$ whenever $x,y \in S$ and $x \neq y$ and let $\sigma(G)$ be the minimal size of a family of proper…

Group Theory · Mathematics 2022-06-24 Francesco Fumagalli , Martino Garonzi , Pietro Gheri

We prove the conjecture by M. Yip stating that counting genus one partitions by the number of their elements and parts yields, up to a shift of indices, the same array of numbers as counting genus one rooted hypermonopoles. Our proof…

Combinatorics · Mathematics 2013-06-24 Robert Cori , Gábor Hetyei

We study cohomology for classical Lie superalgebras $\mathfrak{g}$ (e.g. gl(m|n)) over the complex numbers. Using results from invariant theory, we show that there exist subsuperalgebras which detect the cohomology of $\mathfrak{g}.$…

Representation Theory · Mathematics 2007-05-23 Brian D. Boe , Jonathan R. Kujawa , Daniel K. Nakano

This paper is concerned with extensions of geometric stability theory to some nonelementary classes. We prove the following theorem: Theorem: Let C be a large homogeneous model of a stable diagram D. Let p, q in S_D(A), where p is…

Logic · Mathematics 2007-05-23 Tapani Hyttinen , Olivier Lessmann , Saharon Shelah

This paper focuses on a refinement of the inverse Galois problem. We explore what finite groups appear as the Galois group of an extension of the rational numbers in which only a predetermined set of primes may ramify. After presenting new…

Number Theory · Mathematics 2019-05-14 Benjamin Pollak

A new class of integrable mappings and chains is introduced. Corresponding $(1+2)$ integrable systems invariant with respect to such discrete transformations are presented in an explicit form. Their soliton-type solutions are constructed in…

Mathematical Physics · Physics 2007-05-23 A. N. Leznov

Let H be a subgroup of some locally compact group G. Assume H is approximable by discrete subgroups and G admits neighborhood bases which are "almost-invariant" under conjugation by finite subsets of H. Let $m: G \to \mathbb{C}$ be a…

Classical Analysis and ODEs · Mathematics 2014-07-10 Martijn Caspers , Javier Parcet , Mathilde Perrin , Éric Ricard

We extend inner fluctuations to spectral triples that do not fulfill the first-order condition. This involves the addition of a quadratic term to the usual linear terms. We find a semi-group of inner fluctuations, which only depends on the…

Mathematical Physics · Physics 2013-12-02 Ali H. Chamseddine , Alain Connes , Walter D. van Suijlekom

We study the restriction to the symmetric group, $\mc{S}_n$ of the adjoint representation of $\mt{GL}_n(\C)$. We determine the irreducible constituents of the space of symmetric as well as the space of skew-symmetric $n\times n$ matrices as…

Representation Theory · Mathematics 2018-04-02 Mahir Bilen Can , Miles Jones

Suppose $\rho_1, \rho_2$ are two $\ell$-adic Galois representations of the absolute Galois group of a number field, such that the algebraic monodromy group of one of the representations is connected and the representations are locally…

Number Theory · Mathematics 2020-06-12 Vijay M. Patankar , C. S. Rajan

Let $G$ be a nonabelian group, $A\subseteq G$ an abelian subgroup and $n\geqslant 2$ an integer. We say that $G$ has an $n$-abelian partition with respect to $A$, if there exists a partition of $G$ into $A$ and $n$ disjoint commuting…

Group Theory · Mathematics 2018-06-07 Ali Mahmoudifar , Ali Reza Moghaddamfar , Faez Salehzadeh