Maximal number of Skew lines on Fermat Surfaces

Fuente: arXiv
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Main Authors: Andria, Sally, Rojas, Jacqueline, Mangueira, Wállace
Format: Preprint
Published: 2024
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_version_ 1866917825107460096
author Andria, Sally
Rojas, Jacqueline
Mangueira, Wállace
author_facet Andria, Sally
Rojas, Jacqueline
Mangueira, Wállace
contents It is well-known that the Fermat surface of degree $d\geq 3$ has $3d^2$ lines. However, it has not yet been established what is the maximal number of pairwise disjoint lines that it can have if $d\geq 4$. In this article we show that the maximal number of skew lines on the Fermat surface of degree $d\geq 4$ is $3d$, either $d$ even or $d$ odd distinct of 5, otherwise ($d=5$) it contains no more than 13 pairwise disjoint lines.
format Preprint
id arxiv_https___arxiv_org_abs_2403_15666
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Maximal number of Skew lines on Fermat Surfaces
Andria, Sally
Rojas, Jacqueline
Mangueira, Wállace
Algebraic Geometry
Commutative Algebra
Number Theory
14N10, 14N20, 11A07
It is well-known that the Fermat surface of degree $d\geq 3$ has $3d^2$ lines. However, it has not yet been established what is the maximal number of pairwise disjoint lines that it can have if $d\geq 4$. In this article we show that the maximal number of skew lines on the Fermat surface of degree $d\geq 4$ is $3d$, either $d$ even or $d$ odd distinct of 5, otherwise ($d=5$) it contains no more than 13 pairwise disjoint lines.
title Maximal number of Skew lines on Fermat Surfaces
topic Algebraic Geometry
Commutative Algebra
Number Theory
14N10, 14N20, 11A07
url https://arxiv.org/abs/2403.15666