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In this paper, we prove the generic overconvergence of relative rigid cohomology with coefficient, by using the semistable reduction conjecture for overconvergent $F$-isocrystals (which is recently shown by Kedlaya).

Number Theory · Mathematics 2008-05-22 Atsushi Shiho

Let $C$ be a smooth curve over a finite field in characteristic $p$ and let $M$ be an overconvergent $F$-isocrystal over $C$. After replacing $C$ with a dense open subset $M$ obtains a slope filtration, whose steps interpolate the Frobenius…

Number Theory · Mathematics 2021-07-13 Joe Kramer-Miller

We explore generalizations of the $p$-adic Simpson correspondence on smooth proper rigid spaces to principal bundles under rigid group varieties $G$. For commutative $G$, we prove that such a correspondence exists if and only if the Lie…

Algebraic Geometry · Mathematics 2025-03-19 Ben Heuer , Annette Werner , Mingjia Zhang

In 2010 de Jong proposed a $p$-adic version of Gieseker's conjecture: if $X$ is a smooth, simply connected projective variety, then any isocrystal on $X$ is constant. This was proven by Esnault and Shiho under some additional assumptions.…

Algebraic Geometry · Mathematics 2018-02-07 Efstathia Katsigianni

We show that to every p-divisible group over a p-adic ring one can associate a display by crystalline Dieudonne theory. For an appropriate notion of truncated displays, this induces a functor from truncated Barsotti-Tate groups to truncated…

Algebraic Geometry · Mathematics 2010-06-15 Eike Lau

Let $F$ be a non-Archimedean locally compact field, let $G$ be a split connected reductive group over $F$. For a parabolic subgroup $Q\subset G$ and a ring $L$ we consider the $G$-representation on the $L$-module$$(*)\quad\quad\quad\quad…

Representation Theory · Mathematics 2015-01-14 Elmar Grosse-Klönne

Let p be a prime. Uniform pro-p groups play a central role in the theory of p-adic Lie groups. Indeed, a topological group admits the structure of a p-adic Lie group if and only if it contains an open pro-p subgroup which is uniform.…

Group Theory · Mathematics 2012-10-19 Benjamin Klopsch , Ilir Snopce

It has been proven by Serre, Larsen-Pink and Chin, that over a smooth curve over a finite field, the monodromy groups of compatible semi-simple pure lisse sheaves have "the same" $\pi_0$ and neutral component. We generalize their results to…

Number Theory · Mathematics 2023-07-25 Marco D'Addezio

We describe a special case of base change of certain supercuspidal representations from a ramified unitary group to a general linear group, both defined over a p-adic field of odd residual characteristic. Roughly speaking, we require the…

Number Theory · Mathematics 2020-01-07 Corinne Blondel , Geo Kam-Fai Tam

For an algebraically closed non-archimedean extension $C/\mathbb{Q}_p$, we define a Tannakian category of $p$-adic Hodge structures over $C$ that is a local, $p$-adic analog of the global, archimedean category of $\mathbb{Q}$-Hodge…

Number Theory · Mathematics 2026-05-13 Sean Howe , Christian Klevdal

In this paper we give invariants that characterize isotypically equivalent Abelian periodic groups. Also, we describe types of standart tuples of elements in these groups. As the particular case we prove that two Abelian $p$-groups with…

Group Theory · Mathematics 2024-07-24 Elena Bunina

We define functorial isomorphisms of parallel transport along \'etale paths for a class of principal $G$-bundles on a $p$-adic curve. Here $G$ is a connected reductive algebraic group of finite presentation and the considered principal…

Algebraic Geometry · Mathematics 2007-06-08 Urs Hackstein

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

In this paper, we consider representations of $p$-adic classical groups parabolically induced from the products of shifted Speh representations and unitary representations of Arthur type of good parity. We describe how to compute the socles…

Representation Theory · Mathematics 2022-04-26 Hiraku Atobe

Let $\pi $ be an irreducible smooth complex representation of a general linear $p$-adic group and let $\sigma $ be an irreducible complex supercuspidal representation of a classical $p$-adic group of a given type, so that $\pi\otimes\sigma…

Representation Theory · Mathematics 2018-08-28 Dan Ciubotaru , Volker Heiermann

We compute the p-torsion and p-adic etale cohomologies with compact support of period domains over local fields in the case of basic isocrystals for quasi-split reductive groups. For the p-torsion case, we follow the method used by Orlik in…

Number Theory · Mathematics 2021-10-26 Pierre Colmez , Gabriel Dospinescu , Julien Hauseux , Wiesława Nizioł

Oort-Zink proved that a $p$-divisible group over a normal base in characteristic $p$ with constant Newton polygon is isogenous to a $p$-divisible group admitting a slope filtration. In this paper, we generalize this result to log…

Algebraic Geometry · Mathematics 2025-12-30 Kentaro Inoue

This paper introduces an abelian category of logarithmic coherent sheaves that arranges coherent sheaves across all expansions and root stacks of a simple normal crossing degeneration. Formally, logarithmic coherent sheaves are coherent…

Algebraic Geometry · Mathematics 2026-04-08 Hannah Dell , Xianyu Hu , Patrick Kennedy-Hunt , Kabeer Manali Rahul , Maximilian Schimpf

We define functorial isomorphisms of parallel transport along etale paths for a class of G-principal bundles on a p-adic curve where G is a connected reductive algebraic group of finite presentation. This class consists of all principal…

Algebraic Geometry · Mathematics 2007-05-23 Urs Hackstein

We introduce preordered semi-orthogonal decompositions (psod-s) of dg-categories. We show that homotopy limits of dg-categories equipped with compatible psod-s carry a natural psod. This gives a way to glue semi-orthogonal decompositions…

Algebraic Geometry · Mathematics 2020-05-07 Sarah Scherotzke , Nicolò Sibilla , Mattia Talpo