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We investigate a strong version of the integral Tate conjecture for 1-cycles on the product of a curve and a surface over a finite field, under the assumption that the surface is geometrically $CH_0$-trivial. By this we mean that over any…

Algebraic Geometry · Mathematics 2021-07-27 Jean-Louis Colliot-Thélène , Federico Scavia

We compute the Chow group of zero-cycles on certain Ch{\^a}telet surfaces over local fields.

Algebraic Geometry · Mathematics 2008-07-09 Supriya Pisolkar

For an abelian variety $A$ over a field $k$ the author defined in \cite{Gazaki2015} a Bloch-Beilinson type filtration $\{F^r(A)\}_{r\geq 0}$ of the Chow group of zero-cycles, $\text{CH}_0(A)$, with successive quotients related to a Somekawa…

Algebraic Geometry · Mathematics 2024-05-30 Evangelia Gazaki

For a generalized Kummer variety X of dimension 2n, we will construct for each 0 < i < n some co-isotropic subvarieties in X foliated by i-dimensional constant cycle subvarieties. These subvarieties serve to prove that the rational orbit…

Algebraic Geometry · Mathematics 2015-07-21 Hsueh-Yung Lin

We consider the generating series of appropriately completed 0-dimensional special cycles on a toroidal compactification of an orthogonal or unitary Shimura variety with values in the Chow group. We prove that it is a holomorphic Siegel,…

Number Theory · Mathematics 2024-04-10 Jan Hendrik Bruinier , Eugenia Rosu , Shaul Zemel

In this paper we show the existence of an action of Chow correspondences on the cohomology of reciprocity sheaves. In order to do so, we prove a number of structural results, such as a projective bundle formula, a blow-up formula, a Gysin…

Algebraic Geometry · Mathematics 2022-06-22 Federico Binda , Kay Rülling , Shuji Saito

Let $X$ be a hyperk\"ahler variety, and assume $X$ has a non-symplectic automorphism $\sigma$ of order $>{1\over 2}\dim X$. Bloch's conjecture predicts that the quotient $X/<\sigma>$ should have trivial Chow group of $0$-cycles. We verify…

Algebraic Geometry · Mathematics 2017-12-19 Robert Laterveer

In this paper we define a descending filtration on the Chow group of zero cycles for varieties of the form $A \times C_1 \times \cdots \times C_d$ where $A$ is an abelian variety and each $C_i$ is a smooth projective curve. We give explicit…

Algebraic Geometry · Mathematics 2025-12-02 Thomas Jaklitsch

We show that the Suslin homology group with integral coefficients of a scheme $X$ separated of finite type over an algebraically closed field of characteristic 0 is a direct sum of a uniquely divisible group, finite copies of…

Algebraic Geometry · Mathematics 2020-11-02 Xiaowen Hu , with an Appendix by Bruno Kahn

We show that the cycle map on a variety X, from algebraic cycles modulo algebraic equivalence to integer cohomology, lifts canonically to a topologically defined quotient of the complex cobordism ring of X. This more refined cycle map gives…

alg-geom · Mathematics 2008-02-03 Burt Totaro

Let X be a smooth proper variety over a perfect field k of arbitrary characteristic. Let D be an effective divisor on X with multiplicity. We introduce an Albanese variety Alb(X, D) of X of modulus D as a higher dimensional analogon of the…

Algebraic Geometry · Mathematics 2013-10-09 Henrik Russell

We show that the higher Chow groups with modulus of Binda-Kerz-Saito for a smooth quasi-projective scheme $X$ is a module over the Chow ring of $X$. From this, we deduce certain pull-backs, the projective bundle formula, and the blow-up…

Algebraic Geometry · Mathematics 2016-05-12 Amalendu Krishna , Jinhyun Park

For a natural class of cohomology theories with support (including \'etale or pro-\'etale cohomology with suitable coefficients), we prove a moving lemma for cohomology classes with support on smooth quasi-projective k-varieties that admit…

Algebraic Geometry · Mathematics 2026-05-27 Stefan Schreieder

We prove that a smooth proper universally CH_0-trivial variety X over a field k has universally trivial Brauer group. This fills a gap in the literature concerning the p-torsion of the Brauer group when k has characteristic p.

Algebraic Geometry · Mathematics 2018-06-19 Asher Auel , Alessandro Bigazzi , Christian Böhning , Hans-Christian Graf von Bothmer

Let $X$ be a $K3$ surface over a $p$-adic field $k$ such that for some abelian surface $A$ isogenous to a product of two elliptic curves, there is an isomorphism over the algebraic closure of $k$ between $X$ and the Kummer surface…

Algebraic Geometry · Mathematics 2026-05-27 Evangelia Gazaki , Jonathan Love

Conjectures on the existence of zero-cycles on arbitrary smooth projective varieties over number fields were proposed by Colliot-Th\'el\`ene, Sansuc, Kato and Saito in the 1980's. We prove that these conjectures are compatible with…

Number Theory · Mathematics 2016-03-29 Yonatan Harpaz , Olivier Wittenberg

In this note we define the notion of Tate-Shafarevich group and Selmer group of the Chow group of an abelian variety defined over a number field. In this context we give positive answer to the question of Colliot-Th\'{e}l\`{e}ne that the…

Number Theory · Mathematics 2020-04-22 Kalyan Banerjee , Kalyan Chakraborty

We construct an algebraic-cycle based model for the motivic cohomology on the category of schemes of finite type over a field, where schemes may admit arbitrary singularities and may be non-reduced. We show that our theory is functorial on…

Algebraic Geometry · Mathematics 2021-12-30 Jinhyun Park

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

Rost defined the Chow group of algebraic cycles with coefficients in a locally constant torsion etale sheaf. We generalize the definition to allow non-torsion coefficients. Chow groups with twisted coefficients are related to Serre's notion…

Algebraic Geometry · Mathematics 2025-03-03 Burt Totaro
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