English

Divisibility Results for zero-cycles

Algebraic Geometry 2021-04-09 v2

Abstract

Let XX be a product of smooth projective curves over a finite unramified extension kk of Qp\mathbb{Q}_p. Suppose that the Albanese variety of XX has good reduction and that XX has a kk-rational point. We propose the following conjecture. The kernel of the Albanese map CH0(X)0AlbX(k)CH_0(X)^0\rightarrow\text{Alb}_X(k) is pp-divisible. When pp is an odd prime, we prove this conjecture for a large family of products of elliptic curves and certain principal homogeneous spaces of abelian varieties. Using this, we provide some evidence for a local-to-global conjecture for zero-cycles of Colliot-Th\'{e}l\`{e}ne and Sansuc (\cite{Colliot-Thelene/Sansuc1981}), and Kato and Saito (\cite{Kato/Saito1986}).

Keywords

Cite

@article{arxiv.2004.05255,
  title  = {Divisibility Results for zero-cycles},
  author = {Evangelia Gazaki and Toshiro Hiranouchi},
  journal= {arXiv preprint arXiv:2004.05255},
  year   = {2021}
}

Comments

37 pages. Most cases of bad reduction have been removed

R2 v1 2026-06-23T14:47:36.343Z