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K. Kato has recently constructed certain syntomic complexes associated with a uniform $F$-crystal over a smooth project variety $X$ and related their cohomology groups to special values of the $L$-function attached to $F$. In this paper, we…

Number Theory · Mathematics 2020-09-29 Tung T. Nguyen

We construct and analyze the "syntomic Steenrod algebra", which acts on the mod $p$ syntomic cohomology (also known as etale-motivic cohomology) of algebraic varieties in characteristic $p$. We then apply the resulting theory to resolve the…

Algebraic Geometry · Mathematics 2026-03-31 Shachar Carmeli , Tony Feng

We study properties of compactly supported $p$-adic pro-\'etale cohomology of smooth partially proper rigid analytic varieties. In particular, we prove a comparison theorem, in a stable range, with compactly supported syntomic cohomology,…

Algebraic Geometry · Mathematics 2025-01-24 Piotr Achinger , Sally Gilles , Wiesława Nizioł

We construct a relative Hodge-Tate spectral sequence for any smooth proper morphism of rigid analytic spaces over a perfectoid field extension of $\mathbb Q_p$. To this end, we generalise Scholze's strategy in the absolute case by using…

Algebraic Geometry · Mathematics 2024-02-02 Ben Heuer

This article records multiple results coming from interplay between de-completed topological periodic cyclic homology, Segal conjecture, and F-smoothness. We establish completeness of motivic filtration on de-completed topological periodic…

K-Theory and Homology · Mathematics 2025-12-22 Zhouhang Mao

Given a proper, smooth (formal) scheme over the ring of integers of $\mathbb C_p$, we prove that if the crystalline cohomology of its special fibre is torsion-free then the $p$-adic \'etale cohomology of its generic fibre is also…

Algebraic Geometry · Mathematics 2015-07-30 Bhargav Bhatt , Matthew Morrow , Peter Scholze

Syntomic cohomology here defined yields a link between rigid cohomology and etale cohomology, viewing the last one as the fixed points under Frobenius of the former one. Let V be a complete discrete valuation ring, with perfect residue…

Algebraic Geometry · Mathematics 2009-10-26 Jean-Yves Etesse

The Hodge-Tate spectral sequence for a proper smooth variety over a p-adic field provides a framework for us to revisit Faltings' approach to p-adic Hodge theory and to fill in many details. The spectral sequence is obtained from the…

Algebraic Geometry · Mathematics 2015-09-14 Ahmed Abbes , Michel Gros

Faltings' approach in $p$-adic Hodge theory can be schematically divided into two main steps: firstly, a local reduction of the computation of the $p$-adic \'etale cohomology of a smooth variety over a $p$-adic local field to a Galois…

Algebraic Geometry · Mathematics 2022-01-20 Tongmu He

Normal form theory is developed deeply for planar smooth systems but has few results for piecewise-smooth systems because difficulties arise from continuity of the near-identity transformation, which is constructed piecewise. In this paper,…

Dynamical Systems · Mathematics 2025-06-17 Jiahao Li , Xingwu Chen , Weinian Zhang

We develop a full 6-functor formalism for $p$-torsion \'etale sheaves in rigid-analytic geometry. More concretely, we use the recently developed condensed mathematics by Clausen--Scholze to associate to every small v-stack (e.g.…

Algebraic Geometry · Mathematics 2022-06-07 Lucas Mann

The purpose of this paper is to prove a basic $p$-adic comparison theorem for smooth rigid analytic and dagger varieties over the algebraic closure $C$ of a $p$-adic field: $p$-adic pro-\'etale cohomology, in a stable range, can be…

Number Theory · Mathematics 2023-11-02 Pierre Colmez , Wiesława Nizioł

In this paper we define the triangulated category of motives over a simplicial scheme. The morphisms between the Tate objects in this category compute the motivic cohomology of the underlying scheme. In the last section we consider the…

Algebraic Geometry · Mathematics 2008-05-30 Vladimir Voevodsky

We study a condensed version of the \'etale homotopy type of a scheme, which refines both the usual \'etale homotopy type of Friedlander-Artin-Mazur and the pro\'etale fundamental group of Bhatt-Scholze. In the first part of this paper, we…

We prove that for any twist rigid compact $p$-adic analytic group $G$, its twist representation zeta function is a finite sum of terms $n_{i}^{-s}f_{i}(p^{-s})$, where $n_{i}$ are natural numbers and $f_{i}(t)\in\mathbb{Q}(t)$ are rational…

Group Theory · Mathematics 2024-05-02 Alexander Stasinski , Michele Zordan

We show that the logarithmic version of the syntomic cohomology of Fontaine and Messing for semistable varieties over $p$-adic rings extends uniquely to a cohomology theory for varieties over $p$-adic fields that satisfies $h$-descent. This…

Number Theory · Mathematics 2016-10-19 Jan Nekovář , Wiesława Nizioł

We give a proof of the $p$-adic weight monodromy conjecture for scheme-theoretic complete intersections in projective smooth toric varieties. The strategy is based on Scholze's proof in the $\ell$-adic setting, which we adapt using…

Algebraic Geometry · Mathematics 2025-06-11 Federico Binda , Hiroki Kato , Alberto Vezzani

We give a new definition of the derived category of constructible $\ell$-adic sheaves on a scheme, which is as simple as the geometric intuition behind them. Moreover, we define a refined fundamental group of schemes, which is large enough…

Algebraic Geometry · Mathematics 2014-12-18 Bhargav Bhatt , Peter Scholze

We consider syntomic complexes of uniform F-crystals and relate them to Tamagawa number conjecture in characteristic p

Algebraic Geometry · Mathematics 2019-10-01 Kazuya Kato

This work is devoted to the study of integral $p$-adic Hodge theory in the context of Artin stacks. For a Hodge-proper stack, using the formalism of prismatic cohomology, we establish a version of $p$-adic Hodge theory with the \'etale…

Algebraic Geometry · Mathematics 2021-05-13 Dmitry Kubrak , Artem Prikhodko