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Related papers: A note on Fontaine theory using different Lubin-Ta…

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In the Lubin-Tate setting we study pairings for analytic $(\varphi_L,\Gamma_L)$-modules and prove an abstract reciprocity law which then implies a relation between the analogue of Perrin-Riou's Big Exponential map as developed by Berger and…

Number Theory · Mathematics 2023-01-30 Peter Schneider , Otmar Venjakob

Let $L/\mathbb{Q}_p$ be a finite extension. We introduce $L$-typical prisms, a mild generalization of prisms. Following ideas of Bhatt, Scholze, and Wu, we show that certain vector bundles, called Laurent $F$-crystals, on the $L$-typical…

Number Theory · Mathematics 2023-05-15 Samuel Marks

In this paper, we prove the Cartier duality for $(\phi, \hat{G})$-modules which are defined by Tong Liu to classify semistable Galois representations.

Number Theory · Mathematics 2011-05-30 Yoshiyasu Ozeki

We prove that two arithmetically significant extensions of a field F coincide if and only if the Witt ring WF is a group ring Z/n[G]. Furthermore, working modulo squares with Galois groups which are 2-groups, we establish a theorem…

Algebraic Topology · Mathematics 2007-05-23 Alejandro Adem , Wenfeng Gao , Dikran Karagueuzian , Jan Minac

This paper studies crystalline representations of G_K with coefficients of any dimension, where K is the unramified extension of Q_p of degree a. We prove a theorem of Fontaine-Laffaille type when \sigma-invariant Hodge-Tate weight less…

Number Theory · Mathematics 2009-02-26 Hui June Zhu

Explicit descriptions of local integral Galois module generators in certain extensions of $p$-adic fields due to Pickett have recently been used to make progress with open questions on integral Galois module structure in wildly ramified…

Number Theory · Mathematics 2012-01-20 Erik Jarl Pickett , Lara Thomas

We propose an analytical approach to the Galois theory of singular regular linear q-difference systems. We use Tannaka duality along with Birkhoff's classification scheme with the connection matrix to define and describe their Galois…

Quantum Algebra · Mathematics 2007-05-23 Jacques Sauloy

We extend the classical duality results of Poitou and Tate for finite discrete Galois modules over local and global fields (local duality, nine-term exact sequence, etc.) to all affine commutative group schemes of finite type, building on…

Number Theory · Mathematics 2023-02-07 Zev Rosengarten

Let $K$ be a complete discrete valuation field of characteristic $0$ with perfect residue field of characteristic $p>0$. We introduce the notion of crystalline $(\varphi,\Gamma)$-modules over $\widetilde{\mathbb{A}}_K^{+}$ and show that…

Number Theory · Mathematics 2026-04-22 Takumi Watanabe

In the first part of this paper we try to explain to a general mathematical audience some of the remarkable web of conjectures linking representations of Galois groups with algebraic geometry, complex analysis and discrete subgroups of Lie…

Number Theory · Mathematics 2007-05-23 Richard Taylor

We examine which representations of the absolute Galois group of a field of finite characteristic with image over a finite field of the same characteristic may be constructed by the Galois group's action on the division points of an…

Number Theory · Mathematics 2008-02-03 Nigel Boston , David T. Ose

In this paper, we study $(\varphi,\Gamma)$-modules over rings which are "combinations of discrete algebras and affinoid $\mathbb{Q}_p$-algebras", and prove basic results such as the existence of a fully faithful functor from the category of…

Number Theory · Mathematics 2026-01-30 Yutaro Mikami

Let V be a p-adic representation of the absolute Galois group G of Q_p that becomes crystalline over a finite tame extension, and assume p odd. We provide necessary and sufficient conditions for V to be isomorphic to the Tate module V_p(A)…

Number Theory · Mathematics 2007-05-23 M. Volkov

In this article we study the behavior of inertia groups for modular Galois mod l^n representations and in some cases we give a generalization of Ribet's lowering the level result

Number Theory · Mathematics 2008-04-13 Luis Dieulefait , Xavier Taixes i Ventosa

We prove the finiteness and compatibility with base change of the (phi,Gamma)-cohomology and the Iwasawa cohomology of arithmetic families of (phi,Gamma)-modules. Using this finiteness theorem, we show that a family of Galois…

Number Theory · Mathematics 2013-11-20 Kiran S. Kedlaya , Jonathan Pottharst , Liang Xiao

In this note, we study the relation between Fontaine-Laffaille modules and strongly divisible modules, without assuming the main theorem of Fontaine-Laffaille (but we need to assume the main results concerning strongly divisible modules).…

Number Theory · Mathematics 2023-04-04 Hui Gao

We generalise a result of Fourquaux and Xie thereby completely determining the relationship between $\mathbb{Q}_p$ and $L$-analytic Lie algebra cohomology of analytic $(\varphi_L,\Gamma_L)$-modules. We use the results to conclude that for…

Number Theory · Mathematics 2025-04-16 Rustam Steingart

Let $F$ be a finite extension of $\mathbb{Q}_p$ and let $E$ be a quadratic extension of $F$. A representation $(\pi,V)$ of ${\rm GL}_n(E)$ is said to be ${\rm GL}_n(F)$-distinguished if there exists a non-zero linear functional $\phi$ on…

Representation Theory · Mathematics 2026-03-04 Sabyasachi Dhar , Hariom Sharma

It was established before that fusion rings in a rational conformal field theory (RCFT) can be described as rings of polynomials, with integer coefficients, modulo some relations. We use the Galois group of these relations to obtain a local…

High Energy Physics - Theory · Physics 2008-11-26 Doron Gepner

Berger and Colmez introduced a theory of families of overconvergent \'etale (Phi,Gamma)-modules associated to families of p-adic Galois representations over p-adic Banach algebras. However, in contrast with the classical theory of…

Number Theory · Mathematics 2011-02-08 Kiran Kedlaya , Ruochuan Liu