English

Ovoids in the cyclic presentation of PG(3,q)

Combinatorics 2026-03-17 v2 Number Theory

Abstract

We consider the cyclic presentation of PG(3,q)PG(3,q) whose points are in the finite field Fq4\mathbb{F}_{q^4} and describe the known ovoids therein. We revisit the set O\mathcal{O}, consisting of (q2+1)(q^2+1)-th roots of unity in Fq4\mathbb{F}_{q^4}, and prove that it forms an elliptic quadric within the cyclic presentation of PG(3,q)PG(3,q). Additionally, following the work of Glauberman on Suzuki groups, we offer a new description of Suzuki-Tits ovoids in the cyclic presentation of PG(3,q)PG(3,q), characterizing them as the zeroes of a polynomial over Fq4\mathbb{F}_{q^4}.

Keywords

Cite

@article{arxiv.2410.04126,
  title  = {Ovoids in the cyclic presentation of PG(3,q)},
  author = {Kanat Abdukhalikov and Simeon Ball and Duy Ho and Tabriz Popatia},
  journal= {arXiv preprint arXiv:2410.04126},
  year   = {2026}
}