Gaps on the intersection numbers of sections on a rational elliptic surface
Number Theory
2023-01-10 v1 Algebraic Geometry
Abstract
Given a rational elliptic surface X over an algebraically closed field, we investigate whether a given natural number k can be the intersection number of two sections of X. If not, we say that k a gap number. We try to answer when gap numbers exist, how they are distributed and how to identify them. We use Mordell-Weil lattices as our main tool, which connects the investigation to the classical problem of representing integers by positive-definite quadratic forms.
Keywords
Cite
@article{arxiv.2301.03137,
title = {Gaps on the intersection numbers of sections on a rational elliptic surface},
author = {Renato Dias Costa},
journal= {arXiv preprint arXiv:2301.03137},
year = {2023}
}