Representability of Chow groups of codimension three cycles
Algebraic Geometry
2021-03-11 v3 K-Theory and Homology
Abstract
In this note we are going to prove that if we have a fibration of smooth projective varieties over a surface such that is of dimension four and that the geometric generic fiber has finite dimensional motive and the first \'etale cohomology of the geometric generic fiber with respect to coefficients is zero and the second \'etale cohomology is spanned by divisors, then (codimension three algebraically trivial cycles modulo rational equivalence) is dominated by finitely many copies of . Meaning that there exists finitely many correspondences on , such that is surjective from to .
Keywords
Cite
@article{arxiv.1906.08232,
title = {Representability of Chow groups of codimension three cycles},
author = {Kalyan Banerjee},
journal= {arXiv preprint arXiv:1906.08232},
year = {2021}
}
Comments
14 pages, comments are welcome, accepted for publication in Advances in Geometry