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In this paper, we consider the (crystalline) prismatic crystals on a scheme $\mathfrak{X}$. We classify the crystals by $p$-connections on a certain ring and prove a cohomological comparison theorem. This equivalence is more general than…

Algebraic Geometry · Mathematics 2024-07-23 Jiahong Yu

The goal of this paper is to offer a new construction of the de Rham-Witt complex of smooth varieties over perfect fields of characteristic $p>0$. We introduce a category of cochain complexes equipped with an endomorphism $F$ of underlying…

Algebraic Geometry · Mathematics 2020-02-20 Bhargav Bhatt , Jacob Lurie , Akhil Mathew

We show that the direct image of the filtered logarithmic de Rham complex is a direct sum of filtered logarithmic complexes with coefficients in variations of Hodge structures, using a generalization of the decomposition theorem of…

Algebraic Geometry · Mathematics 2007-05-23 Morihiko Saito

We introduce differential characters of Drinfeld modules. These are function-field analogues of Buium's p-adic differential characters of elliptic curves and of Manin's differential characters of elliptic curves in differential algebra,…

Number Theory · Mathematics 2019-05-22 James Borger , Arnab Saha

In 1989, Faltings proved the comparison theorem between \'etale cohomology and crystalline cohomology by studying Fontaine-Faltings modules and crystalline representations. In his paper, he mentioned these modules and representations can be…

Algebraic Geometry · Mathematics 2026-02-05 Zhenmou Liu , Jinbang Yang , Kang Zuo

Let $k$ be a perfect field of characteristic $p > 0$, $W_n = W_n(k)$. For separated $k$-schemes of finite type, we explain how rigid cohomology with compact supports can be computed as the cohomology of certain de Rham-Witt complexes with…

Algebraic Geometry · Mathematics 2012-05-22 Pierre Berthelot

We develop a new cohomology theory in characteristic p>0, the so called F-gauge cohomology, a cohomology with values in the category of so-called F-gauges, which refines the cristalline cohomology. In this first paper we mainly discuss the…

Algebraic Geometry · Mathematics 2013-04-16 Jean-Marc Fontaine , Uwe Jannsen

We compute the p-adic geometric \'etale cohomology of the coverings of Drinfeld's half-plane, and we show that, if the base field is Q_p, this cohomology encodes the p-adic local Langlands correspondence for 2-dimensional de Rham…

Number Theory · Mathematics 2018-06-08 Pierre Colmez , Gabriel Dospinescu , Wiesława Nizioł

We extend the relative theory of admissible pairs and $p$-adic Hodge structures introduced in Part II to allow variation in the underlying local systems of $\mathbb{Q}_p$-vector spaces and isocrystals. This extension accommodates, in…

Number Theory · Mathematics 2026-03-25 Sean Howe , Christian Klevdal

For complex parallelisable manifolds $\Gamma\backslash G$, with $G$ a solvable or semisimple complex Lie group, the Fr\"olicher spectral sequence degenerates at the second page. In the solvable case, the de-Rham cohomology carries a pure…

Algebraic Geometry · Mathematics 2020-11-17 Hisashi Kasuya , Jonas Stelzig

We investigate $p$-adic cohomologies of log rigid analytic varieties over a $p$-adic field. For a log rigid analytic variety $X$ defined over a discretely valued field, we compute the Kummer pro-\'etale cohomology of…

Number Theory · Mathematics 2025-06-19 Xinyu Shao

It is well known that the validity of the so called Lenard-Magri scheme of integrability of a bi-Hamiltonian PDE can be established if one has some precise information on the corresponding 1st variational Poisson cohomology for one of the…

Mathematical Physics · Physics 2015-12-18 Alberto De Sole , Victor G. Kac

For a smooth and proper scheme over an artinian local ring with ordinary reduction over the perfect residue field we prove - under some general assumptions - that the relative de Rham-Witt spectral sequence degenerates and the relative…

Algebraic Geometry · Mathematics 2021-08-09 Oliver Gregory , Andreas Langer

In this note, we prove the logarithmic $p$-adic comparison theorem for open rigid analytic varieties. We prove that a smooth rigid analytic variety with a strict simple normal crossing divisor is locally $K(\pi,1)$ (in a certain sense) with…

Algebraic Geometry · Mathematics 2020-02-04 Shizhang Li , Xuanyu Pan

This is a survey of some recent developments concerning the p-adic cohomology of algebraic varieties over fields of positive characteristic and local fields of mixed characteristic, plus some related areas like p-adic Hodge theory.

Algebraic Geometry · Mathematics 2008-04-26 Kiran S. Kedlaya

For a locally nilpotent integrable connection on a proper (strict) semistable family over a small polydisc with a relative horizontal simple normal crossing divisor, we construct a canonical section in derived categories inducing an…

Algebraic Geometry · Mathematics 2021-02-17 Yukiyoshi Nakkajima

Degree one twisting of Deligne cohomology, as a differential refinement of integral cohomology, was established in previous work. Here we consider higher degree twists. The Rham complex, hence de Rham cohomology, admits twists of any odd…

Differential Geometry · Mathematics 2018-09-14 Daniel Grady , Hisham Sati

The first part of the paper is a survey of recent results about the cohomology of $(\phi,\Gamma)$-modules and its applications to the theory of Selmer complexes. In the second part we formulate a version of the Main Conjecture for $p$-adic…

Number Theory · Mathematics 2014-04-30 Denis Benois

We describe algebraically defined cohomological and homological Albanese and Picard 1-motives (or mixed motives) of any algebraic variety in characteristic zero, generalizing the classical Albanese and Picard varieties. We compute Hodge,…

Algebraic Geometry · Mathematics 2007-05-23 L. Barbieri-Viale , V. Srinivas

This paper provides the technical tools needed in ongoing work of the authors to compute p-adic \'etale Abel-Jacobi maps in order to obtain explicit reciprocity laws for GSp4. In particular, we define and study syntomic polynomial…

Number Theory · Mathematics 2026-03-18 Fabrizio Andreatta , Massimo Bertolini , Marco Adamo Seveso , Rodolfo Venerucci
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