Combinatorial structure of low degree rational curves on a smooth Hermitian surface

Fuente: arXiv
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Autor principal: Ojiro, Norifumi
Formato: Preprint
Publicado: 2026
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author Ojiro, Norifumi
author_facet Ojiro, Norifumi
contents A smooth Hermitian surface $X$ is a projective surface isomorphic to the Fermat surface of degree $q+1$ in positive characteristic. We study incidence relations of the rational curves of degree $q+1$ contained in $X$, and show that such curves produce a family of certain strongly regular graphs and association schemes.
format Preprint
id arxiv_https___arxiv_org_abs_2602_10842
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Combinatorial structure of low degree rational curves on a smooth Hermitian surface
Ojiro, Norifumi
Algebraic Geometry
Combinatorics
51E12, 51E20, 51E25, 05E14, 05E18, 05E30
A smooth Hermitian surface $X$ is a projective surface isomorphic to the Fermat surface of degree $q+1$ in positive characteristic. We study incidence relations of the rational curves of degree $q+1$ contained in $X$, and show that such curves produce a family of certain strongly regular graphs and association schemes.
title Combinatorial structure of low degree rational curves on a smooth Hermitian surface
topic Algebraic Geometry
Combinatorics
51E12, 51E20, 51E25, 05E14, 05E18, 05E30
url https://arxiv.org/abs/2602.10842