On the smoothability problem with rational coefficients

Fuente: arXiv
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Main Authors: Benoist, Olivier, Voisin, Claire
Format: Preprint
Published: 2024
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author Benoist, Olivier
Voisin, Claire
author_facet Benoist, Olivier
Voisin, Claire
contents We consider the problem of smoothing algebraic cycles with rational coefficients on smooth projective complex varieties up to homological equivalence. We show that a solution to this problem would be incompatible with the validity of the Hartshorne conjecture on complete intersections in projective space. We also solve unconditionally a symplectic variant of this problem.
format Preprint
id arxiv_https___arxiv_org_abs_2405_12620
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the smoothability problem with rational coefficients
Benoist, Olivier
Voisin, Claire
Algebraic Geometry
14C25, 14J60
We consider the problem of smoothing algebraic cycles with rational coefficients on smooth projective complex varieties up to homological equivalence. We show that a solution to this problem would be incompatible with the validity of the Hartshorne conjecture on complete intersections in projective space. We also solve unconditionally a symplectic variant of this problem.
title On the smoothability problem with rational coefficients
topic Algebraic Geometry
14C25, 14J60
url https://arxiv.org/abs/2405.12620