2-torsion points on theta divisors
Algebraic Geometry
2021-10-26 v2
Abstract
In this note we prove a sharp bound for the number of 2-torsion points on a theta divisor and show that this is achieved only in the case of products of elliptic curves. This settles in the affirmative a conjecture of Marcucci and Pirola.
Cite
@article{arxiv.1907.07084,
title = {2-torsion points on theta divisors},
author = {Giuseppe Pareschi and Riccardo Salvati Manni},
journal= {arXiv preprint arXiv:1907.07084},
year = {2021}
}
Comments
9 pages. Lemma 3.1 added. To appear on IMRN