Comparison of different Tate conjectures
Algebraic Geometry
2025-08-04 v4 Number Theory
Abstract
For an abelian variety over a finitely generated field of characteristic , we prove that the algebraic rank of is at most a suitably defined analytic rank. Moreover, we prove that equality, i.e., the BSD rank conjecture, holds for if and only if a suitably defined Tate--Shafarevich group of (1) has finite -primary component for some/all , or (2) finite prime-to- part, or (3) has -primary part of finite exponent, or (4) is of finite exponent. There is an algorithm to verify those conditions for concretely given .
Keywords
Cite
@article{arxiv.2012.01337,
title = {Comparison of different Tate conjectures},
author = {Veronika Ertl and Timo Keller and Yanshuai Qin},
journal= {arXiv preprint arXiv:2012.01337},
year = {2025}
}