Constructing Jacobians of rank 1
Number Theory
2025-09-30 v1
Abstract
Let be a number field, let be an integer and let be a polynomial that splits into distinct linear factors. Write for the hyperelliptic curve given by and write for its Jacobian. Under mild technical assumptions on that are satisfied almost always, we prove that there exists some such that the quadratic twist has rank exactly equal to . As a consequence, we deduce that for any positive integer , there exists an absolutely simple abelian variety over with dimension equal to and rank equal to .
Cite
@article{arxiv.2509.24937,
title = {Constructing Jacobians of rank 1},
author = {Peter Koymans and Adam Morgan},
journal= {arXiv preprint arXiv:2509.24937},
year = {2025}
}