English

Transverse-freeness in finite geometries

Algebraic Geometry 2024-09-10 v1

Abstract

We study projective curves and hypersurfaces defined over a finite field that are tangent to every member of a class of low-degree varieties. Extending 2-dimensional work of Asgarli, we first explore the lowest degrees attainable by smooth hypersurfaces in nn-dimensional projective space that are tangent to every kk-dimensional subspace, for some value of nn and kk. We then study projective surfaces that serve as models of finite inversive and hyperbolic planes, finite analogs of spherical and hyperbolic geometries. In these surfaces we construct curves tangent to each of the lowest degree curves defined over the base field.

Keywords

Cite

@article{arxiv.2409.05248,
  title  = {Transverse-freeness in finite geometries},
  author = {Charlie Bruggemann and Vera Choi and Brian Freidin and Jaedon Whyte},
  journal= {arXiv preprint arXiv:2409.05248},
  year   = {2024}
}

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19 pages