Results 31 to 40 of about 421 (57)

A remark on the motive of the Fano variety of lines of a cubic

open access: yes, 2016
Let $X$ be a smooth cubic hypersurface, and let $F$ be the Fano variety of lines on $X$. We establish a relation between the Chow motives of $X$ and $F$.
Laterveer, Robert
core   +2 more sources

A remark on Beauville's splitting property

open access: yes, 2017
Let $X$ be a hyperk\"ahler variety. Beauville has conjectured that a certain subring of the Chow ring of $X$ should inject into cohomology. This note proposes a similar conjecture for the ring of algebraic cycles on $X$ modulo algebraic equivalence: a ...
Laterveer, Robert
core   +1 more source

On the Chow groups of some hyperk\"ahler fourfolds with a non-symplectic involution

open access: yes, 2017
This note concerns hyperk\"ahler fourfolds $X$ having a non-symplectic involution $\iota$. The Bloch-Beilinson conjectures predict the way $\iota$ should act on certain pieces of the Chow groups of $X$.
Laterveer, Robert
core   +1 more source

A short note on the weak Lefschetz property for Chow groups

open access: yes, 2015
Motivated by the Bloch-Beilinson conjectures, we formulate a certain covariant weak Lefschetz property for Chow groups. We prove this property in some special cases, using Kimura's nilpotence theorem.Comment: 9 pages. Comments welcome !
Laterveer, Robert
core   +2 more sources

Special correspondences and Chow traces of Landweber-Novikov operations

open access: yes, 2007
We prove that the function field of a variety which possesses a special correspondence in the sense of M. Rost preserves the rationality of cycles of small codimensions.
Zainoulline, Kirill
core   +5 more sources

On Voisin's conjecture for zero-cycles on hyperkaehler varieties

open access: yes, 2017
Motivated by the Bloch-Beilinson conjectures, Voisin has made a conjecture concerning zero-cycles on self-products of Calabi-Yau varieties. We reformulate Voisin's conjecture in the setting of hyperk\"ahler varieties, and we prove this reformulated ...
Laterveer, Robert
core   +1 more source

Note on the counterexamples for the integral Tate conjecture over finite fields

open access: yes, 2014
In this note we discuss some examples of non torsion and non algebraic cohomology classes for varieties over finite fields.
Pirutka, Alena, Yagita, Nobuaki
core   +1 more source

Correspondences and singular varieties

open access: yes, 2015
What is generally known as the "Bloch--Srinivas method" consists of decomposing the diagonal of a smooth projective variety, and then considering the action of correspondences in cohomology.
Laterveer, Robert
core   +1 more source

Multiplicative properties of the multiplicative group

open access: yes, 2017
We give a few properties equivalent to the Bloch-Kato conjecture (now the norm residue isomorphism theorem).Comment: 10 pages; some words added at the end of the ...
Kahn, Bruno
core  

Home - About - Disclaimer - Privacy