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After works by Katz, Monsky, and Adolphson-Sperber, a comparison theorem between relative de Rham cohomology and Dwork cohomology is established in a paper by Dimca-Maaref-Sabbah-Saito in the framework of algebraic D-modules. We propose…

Algebraic Geometry · Mathematics 2015-05-12 Francesco Baldassarri , Andrea D'Agnolo

In this article, we construct two kinds of de Rham-like complexes which compute the cohomology of complete crystals on the higher-level $q$-crystalline site, which was introduced in a previous article of the author. One complex is the…

Algebraic Geometry · Mathematics 2024-08-27 Kimihiko Li

We study duality theorems for the relative logarithmic de Rham-Witt sheaves on semi-stable schemes $X$ over a local ring $\mathbb{F}_q[[t]]$, where $\mathbb{F}_q$ is a finite field. As an application, we obtain a new filtration on the…

Algebraic Geometry · Mathematics 2019-01-01 Yigeng Zhao

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

Le Stum and Quir\'os proved the formal Poincar\'e lemma in crystalline cohomology of higher level using the jet complex, and applied it to give a de Rham interpretation of this cohomology. In this article, we prove the logarithmic version…

Algebraic Geometry · Mathematics 2016-10-14 Kazuaki Miyatani

Let D be a divisor in a complex analytic manifold X. A natural problem is to determine when the de Rham complex of meromorphic forms on X with poles along D is quasi-isomorphic to its subcomplex of logarithmic forms. In this mostly…

Algebraic Geometry · Mathematics 2007-05-23 Tristan Torrelli

We prove that (logarithmic) prismatic and (logarithmic) syntomic cohomology are representable in the category of logarithmic motives. As an application, we obtain Gysin maps for prismatic and syntomic cohomology, and we explicitly identify…

Algebraic Geometry · Mathematics 2026-05-08 Federico Binda , Tommy Lundemo , Alberto Merici , Doosung Park

We give algorithms for the computation of the algebraic de Rham cohomology of open and closed algebraic sets inside projective space or other smooth complex toric varieties. The methods, which are based on Gr\"obner basis computations in…

Algebraic Geometry · Mathematics 2009-09-25 Uli Walther

We introduce all six operations for D-cap-modules on smooth rigid analytic spaces by considering the derived category of complete bornological D-cap-modules. We then focus on a full subcategory which should be thought of as consisting of…

Algebraic Geometry · Mathematics 2025-02-04 Andreas Bode

In this paper, we give a criterion for the existence of logarithmic embeddings -- which was first introduced by Steenbrink -- for general normal crossing varieties. Using this criterion, we also give a new proof of the theorem of…

alg-geom · Mathematics 2008-02-03 Fumiharu Kato

We construct a new cohomology theory for proper smooth (formal) schemes over the ring of integers of C_p. It takes values in a mixed-characteristic analogue of Dieudonne modules, which was previously defined by Fargues as a version of…

Algebraic Geometry · Mathematics 2019-01-16 Bhargav Bhatt , Matthew Morrow , Peter Scholze

We use the stacky approach to $p$-adic cohomology theories recently developed by Drinfeld and Bhatt--Lurie to generalise a comparison theorem between the rational crystalline cohomology of the special fibre and the rational $p$-adic \'etale…

Algebraic Geometry · Mathematics 2025-05-07 Maximilian Hauck

For a rank 1 local system on the complement of a reduced divisor on a complex manifold $X$, its cohomology is calculated by the twisted meromorphic de Rham complex. Assuming the divisor is everywhere positively weighted homogeneous, we…

Algebraic Geometry · Mathematics 2024-02-13 Daniel Bath , Morihiko Saito

We construct log-motivic cohomology groups for semistable varieties and study the $p$-adic deformation theory of log-motivic cohomology classes. Our main result is the deformational part of a $p$-adic variational Hodge conjecture for…

Algebraic Geometry · Mathematics 2025-12-15 Oliver Gregory , Andreas Langer

We present a new method to solve certain $\bar{\partial}$-equations for logarithmic differential forms by using harmonic integral theory for currents on Kahler manifolds. The result can be considered as a $\bar{\partial}$-lemma for…

Algebraic Geometry · Mathematics 2018-11-27 Kefeng Liu , Sheng Rao , Xueyuan Wan

Inspired by the work of Wang and Zhou [4] for Rota-Baxter algebras, we develop a cohomology theory of Rota-Baxter systems and justify it by interpreting the lower degree cohomology groups as formal deformations and as abelian extensions of…

Rings and Algebras · Mathematics 2022-07-15 Yuming Liu , Kai Wang , Liwen Yin

Building on ideas of Berthelot, we develop a crystalline cohomology formalism over divided power rings $(A, I_0, \eta)$ for any ring $A$, allowing $\mathbf{Z}$-flat $A$. For a smooth $A$-scheme $Y$ and a closed subscheme $X$ of $Y$ for…

Algebraic Geometry · Mathematics 2020-11-24 A. M. Masullo

Motivated by applications in point counting algorithms using p-adic cohomology, we give an explicit description of integral lattices in rigid cohomology spaces that p-adically approximate logarithmic crystalline cohomology modules. These…

Number Theory · Mathematics 2011-10-19 George M. Walker

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

In this paper, we first establish an $L^2$-type Dolbeault isomorphism for logarithmic differential forms by H\"{o}rmander's $L^2$-estimates. By using this isomorphism and the construction of smooth Hermitian metrics, we obtain a number of…

Algebraic Geometry · Mathematics 2016-11-24 Chunle Huang , Kefeng Liu , Xueyuan Wan , Xiaokui Yang