Plane quartics and heptagons

Fuente: arXiv
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Hauptverfasser: Agostini, Daniele, Plaumann, Daniel, Sinn, Rainer, Wesner, Jannik Lennart
Format: Preprint
Veröffentlicht: 2024
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author Agostini, Daniele
Plaumann, Daniel
Sinn, Rainer
Wesner, Jannik Lennart
author_facet Agostini, Daniele
Plaumann, Daniel
Sinn, Rainer
Wesner, Jannik Lennart
contents Every polygon with n vertices in the complex projective plane is naturally associated with its adjoint curve of degree n-3. Hence the adjoint of a heptagon is a plane quartic. We prove that a general plane quartic is the adjoint of exactly 864 distinct complex heptagons. This number had been numerically computed by Kohn et al. We use intersection theory and the Scorza correspondence for quartics to show that 864 is an upper bound, complemented by a lower bound obtained through explicit analysis of the famous Klein quartic.
format Preprint
id arxiv_https___arxiv_org_abs_2408_15759
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Plane quartics and heptagons
Agostini, Daniele
Plaumann, Daniel
Sinn, Rainer
Wesner, Jannik Lennart
Algebraic Geometry
14H50, 14H51, 52B99
Every polygon with n vertices in the complex projective plane is naturally associated with its adjoint curve of degree n-3. Hence the adjoint of a heptagon is a plane quartic. We prove that a general plane quartic is the adjoint of exactly 864 distinct complex heptagons. This number had been numerically computed by Kohn et al. We use intersection theory and the Scorza correspondence for quartics to show that 864 is an upper bound, complemented by a lower bound obtained through explicit analysis of the famous Klein quartic.
title Plane quartics and heptagons
topic Algebraic Geometry
14H50, 14H51, 52B99
url https://arxiv.org/abs/2408.15759