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We prove that a smooth proper universally CH_0-trivial variety X over a field k has universally trivial Brauer group. This fills a gap in the literature concerning the p-torsion of the Brauer group when k has characteristic p.

Algebraic Geometry · Mathematics 2018-06-19 Asher Auel , Alessandro Bigazzi , Christian Böhning , Hans-Christian Graf von Bothmer

We investigate generalizations along the lines of the Mordell--Lang conjecture of the author's $p$-adic formal Manin--Mumford results for $n$-dimensional $p$-divisible formal groups $\mathcal{F}$. In particular, given a finitely generated…

Number Theory · Mathematics 2022-05-25 Vlad Serban

This article gives a fairly self-contained treatment of the basic facts about the Iwahori-Hecke algebra of a split p-adic group, including Bernstein's presentation, Macdonald's formula, the Casselman-Shalika formula, and the Lusztig-Kato…

Representation Theory · Mathematics 2010-08-27 Thomas J. Haines , Robert E. Kottwitz , Amritanshu Prasad

The toric fundamental group is the Tannaka dual of a category of vector bundles which become direct sums of line bundles on a finite \'etale cover. It is an extension of the \'etale fundamental group scheme by a projective limit of tori.…

Algebraic Geometry · Mathematics 2025-05-02 Giulio Bresciani

We prove a natural generalization of Szep's conjecture. Given an almost simple group $G$ with socle not isomorphic to an orthogonal group having Witt defect zero, we classify all possible group elements $x,y\in G\setminus\{1\}$ with $G={\bf…

Group Theory · Mathematics 2022-08-19 Nick Gill , Michael Giudici , Pablo Spiga

In this paper, we obtain a characterization of short normal sequences over a finite Abelian p-group, thus answering positively a conjecture of Gao for a variety of such groups. Our main result is deduced from a theorem of Alon, Friedland…

Number Theory · Mathematics 2012-05-28 Benjamin Girard

We combine the language of monoids with the language of preorders so as to refine some fundamental aspects of the classical theory of factorization and prove an abstract factorization theorem with a variety of applications. In particular,…

Rings and Algebras · Mathematics 2022-04-15 Salvatore Tringali

Let G be the Tate module of a p-divisble group H over a perfect field k of characteristic p. A theorem of Scholze-Weinstein describes G (and therefore H itself) in terms of the Dieudonne module of H; more precisely, it describes G(C) for…

Algebraic Geometry · Mathematics 2020-02-18 Vladimir Drinfeld

The Fourier transform, known in classical analysis, and generalized in abstract harmonic analysis, can also be considered in the theory of locally compact quantum groups. In this note, I discuss some aspects of this more general Fourier…

Rings and Algebras · Mathematics 2007-05-23 A. Van Daele

The article on the upper central series of infinite groups by M. de Falco, F. de Giovanni, C. Musella and Y.P. Sysak, proceedings of the american mathematical society, Volume 139, Number 2, February 2011, 385--389 consists of a quite long…

Group Theory · Mathematics 2011-09-12 Igor Ya. Subbotin

The $p$-set, which is in a simple analytic form, is well distributed in unit cubes. The well-known Weil's exponential sum theorem presents an upper bound of the exponential sum over the $p$-set. Based on the result, one shows that the…

Number Theory · Mathematics 2017-06-27 Heng Zhou , Zhiqiang Xu

In this short paper, we give a $p$-adic analogue of the Hard Leftschetz Theorem.

Algebraic Geometry · Mathematics 2015-01-30 Daniel Caro

A generalization of Serre's $p$-adic Eisenstein series in the case of Siegel modular forms is studied and a coincidence between a $p$-adic Siegel Eisenstein series and a genus theta series associated with a quaternary quadratic form is…

Number Theory · Mathematics 2022-05-10 Hidenori Katsurada , Shoyu Nagaoka

The $L$-function of exponential sums associated to the generic polynomial of degree $d$ in $n$ variables over a finite field of characteristic $p$ is studied. A polygon called the Frobenius polygon of the generic polynomial of degree $d$ in…

Number Theory · Mathematics 2020-09-03 Chunlei Liu , Chuanze Niu

Motivated by the Langlands program in representation theory, number theory and geometry, the theory of representations of a reductive $p$-adic group over a coefficient ring different from the field of complex numbers has been widely…

Representation Theory · Mathematics 2022-05-05 Marie-France Vignéras

This article gives a new proof of the Gross--Kohnen--Zagier theorem for Shimura curves which exploits the $p$-adic uniformization of Cerednik--Drinfeld. The explicit description of CM points via this uniformization leads to an expression…

Number Theory · Mathematics 2024-03-28 Lea Beneish , Henri Darmon , Lennart Gehrmann , Martí Roset

Let U be an open subset of a unirational variety. We prove that there is rational curve C in U such that the fundamental group of C surjects onto the fundamental group of U. As a consequence we obtain new proofs of the theorems of Harbater…

Algebraic Geometry · Mathematics 2007-05-23 János Kollár

In this paper we give some interesting equation of p-adic q-integrals on Zp. From those p-adic q-integrals, we present a systemic study of some families of extended Carlitz q-Bernoulli numbers and polynomials in p-adic number field.

Number Theory · Mathematics 2010-08-10 T. Kim , Byungje Lee , C. S. Ryoo

Let $X$ be a smooth rigid space with an action of a finite group $G$ satisfying that $X/G$ is represented by a rigid space. We construct sheaves of $p$-adic Cherednik algebras on the small \'etale site of the quotient $X/G$, and study some…

Number Theory · Mathematics 2026-02-10 Fernando Peña Vázquez

In the long paper "Family Blowup formula, Admissible Graphs and the Enumeration of Singular Curves (I)" (appearing in JDG), the author solved the enumeration problem of nodal (or general singular) curve counting on algebraic surfaces by…

Algebraic Geometry · Mathematics 2007-05-23 Ai-Ko Liu