English

Cubic surfaces with one rational line over finite fields

Number Theory 2013-12-23 v1

Abstract

Let Fq be a finite field with q=8 or q at least 16. Let S be a smooth cubic surface defined over Fq containing at least one rational line. We use a pigeonhole principle to prove that all the rational points on S are generated via tangent and secant operations from a single point.

Keywords

Cite

@article{arxiv.1312.5905,
  title  = {Cubic surfaces with one rational line over finite fields},
  author = {Jenny Cooley},
  journal= {arXiv preprint arXiv:1312.5905},
  year   = {2013}
}

Comments

9 pages

R2 v1 2026-06-22T02:32:28.225Z