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We introduce a notion of integration on the category of proper birational maps to a given variety $X$, with value in an associated Chow group. Applications include new birational invariants; comparison results for Chern classes and numbers…

Algebraic Geometry · Mathematics 2012-04-10 Paolo Aluffi

For a quasi-projective smooth scheme X of pure dimension d over a field k and an effective Cartier divisor D on X whose support is a simple normal crossing divisor, we construct a cycle class map from the Chow group of zero-cycles with…

Algebraic Geometry · Mathematics 2022-10-26 Kay Rülling , Shuji Saito

We give a new definition of higher arithmetic Chow groups for smooth projective varieties defined over a number field, which is similar to Gillet and Soul\'e's definition of arithmetic Chow groups. We also give a compact description of the…

Algebraic Geometry · Mathematics 2018-04-09 José Ignacio Burgos-Gil , Souvik Goswami

We construct the parabolic version and the reductive version of the integral de Rham moduli stacks of Langlands parameters ($p>3$). We allow the group to be arbitrarily ramified. We propose that the top Chow group of the reduced Emerton-Gee…

Number Theory · Mathematics 2025-09-24 Zhongyipan Lin

The Chow groups of codimension-p algebraic cycles modulo rational equivalence on a smooth algebraic variety X have steadfastly resisted the efforts of algebraic geometers to fathom their structure. This book explores a "linearization"…

Algebraic Geometry · Mathematics 2014-05-01 Benjamin F. Dribus

We study the injectivity property of certain actions of higher Chow groups on refined unramified cohomology. As an application for every $p\geq1$ and for each $d\geq p+4$ and $n\geq2,$ we establish the first examples of smooth complex…

Algebraic Geometry · Mathematics 2025-03-27 Theodosis Alexandrou , Lin Zhou

Let $\bar{X}$ be a smooth quasi-projective $d$-dimensional variety over a field $k$ and let $D$ be an effective Cartier divisor on it. In this note, we construct cycle class maps from (a variant of) the higher Chow group with modulus of the…

Algebraic Geometry · Mathematics 2018-01-10 Federico Binda

We prove an extension of the Kato-Saito class field theory for smooth projective schemes over a finite field to schemes with singularities. As an application, we obtain Bloch's formula for the Chow groups of 0-cycles on such schemes. We…

Algebraic Geometry · Mathematics 2022-01-17 Mainak Ghosh , Amalendu Krishna

Let X be a smooth quasi-projective variety over the algebraic closure of the rational number field. We show that the cycle map of the higher Chow group to Deligne cohomology is injective and the higher Hodge cycles are generated by the…

Algebraic Geometry · Mathematics 2008-05-19 Morihiko Saito

We develop a theory of abstract arithmetic Chow rings where the role of the fibers at infinity is played by a complex of abelian groups that computes a suitable cohomology theory. This theory allows the construction of many variants of the…

Number Theory · Mathematics 2007-05-23 J. I. Burgos Gil , J. Kramer , U. Kuehn

Let K be a finite extension of Q_p and X a smooth projective variety over K. We define the notion of totally degenerate reduction of such an X and the associated Chow complexes of the special fibre of a suitable regular proper model of X…

Algebraic Geometry · Mathematics 2007-05-23 Wayne Raskind , Xavier Xarles

For a smooth quasi-projective scheme $X$ over a field $k$ with an action of a reductive group, we establish a spectral sequence connecting the equivariant and the ordinary higher Chow groups of $X$. For $X$ smooth and projective, we show…

Algebraic Geometry · Mathematics 2016-12-01 Amalendu Krishna

The Chow group of zero cycles in the moduli space of stable pointed curves of genus zero is isomorphic to the integer additive group. Let $M$ be monomial in this Chow group. If no two factors of $M$ fulfill a particular quadratic relation,…

Algebraic Geometry · Mathematics 2021-02-09 Jiayue Qi

We show that the Chow group of 0-cycles on a singular projective scheme $X$ over a finite field describes the abelian extensions of its function field which are unramified over the regular locus of $X$. As a consequence, we obtain the…

Algebraic Geometry · Mathematics 2015-02-06 Amalendu Krishna

Based on Balmer's tensor triangular Chow group, we propose K-theoretic Chow groups of derived categories of noetherian schemes and their Milnor variants for regular schemes and their thickenings. We discuss functoriality and show that our…

Algebraic Geometry · Mathematics 2016-02-22 Sen Yang

We show how to use equidimensional algebraic correspondences between complex algebraic varieties to construct pull-backs and transforms of certain classes of geometric currents. Using this construction we produce explicit formulas at the…

Algebraic Geometry · Mathematics 2019-03-28 Pedro F. dos Santos , Robert M. Hardt , Paulo Lima-Filho

We define an `enriched' notion of Chow groups for algebraic varieties, agreeing with the conventional notion for complete varieties, but enjoying a functorial push-forward for arbitrary maps. This tool allows us to glue…

Algebraic Geometry · Mathematics 2012-04-11 Paolo Aluffi

We summarize our axioms for higher categories, and describe the blob complex. Fixing an n-category C, the blob complex associates a chain complex B_*(W;C)$ to any n-manifold W. The 0-th homology of this chain complex recovers the usual…

Category Theory · Mathematics 2011-08-30 Scott Morrison , Kevin Walker

A theorem of Esnault, Srinivas and Viehweg asserts that if the Chow group of 0-cycles of a smooth complete complex variety decomposes, then the top-degree coherent cohomology group decomposes similarly. In this note, we prove a similar…

Algebraic Geometry · Mathematics 2016-02-17 Robert Laterveer

We define a filtration on the Chow groups of a smooth projective variety X over a field k by using the cycle map into continuous l-adic etale cohomology. The main theorem says that if k is a function field in one variable over a finite…

alg-geom · Mathematics 2008-02-03 Wayne M. Raskind