English

Non-Isomorphic Abelian Varieties with the Same Arithmetic

Number Theory 2025-08-04 v3

Abstract

We construct two abelian varieties over Q\mathbb{Q} which are not isomorphic, but have isomorphic Mordell--Weil groups over every number field, isomorphic Tate modules and equal values for several other invariants.

Keywords

Cite

@article{arxiv.2502.02254,
  title  = {Non-Isomorphic Abelian Varieties with the Same Arithmetic},
  author = {Jamie Bell},
  journal= {arXiv preprint arXiv:2502.02254},
  year   = {2025}
}

Comments

Fixed proof of Lemma 8, other minor changes

R2 v1 2026-06-28T21:32:01.274Z