Bounding the signed count of real bitangents to plane quartics

Fuente: arXiv
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Autores principales: Kummer, Mario, McKean, Stephen
Formato: Preprint
Publicado: 2023
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_version_ 1866912182185230336
author Kummer, Mario
McKean, Stephen
author_facet Kummer, Mario
McKean, Stephen
contents Using methods from enriched enumerative geometry, Larson and Vogt gave a signed count of the number of real bitangents to real smooth plane quartics. This signed count depends on a choice of a distinguished line. Larson and Vogt proved that this signed count is bounded below by 0, and they conjectured that the signed count is bounded above by 8. We prove this conjecture using real algebraic geometry, plane geometry, and some properties of convex sets.
format Preprint
id arxiv_https___arxiv_org_abs_2303_02008
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Bounding the signed count of real bitangents to plane quartics
Kummer, Mario
McKean, Stephen
Algebraic Geometry
Primary: 14H50. Secondary: 14P99, 14N10
Using methods from enriched enumerative geometry, Larson and Vogt gave a signed count of the number of real bitangents to real smooth plane quartics. This signed count depends on a choice of a distinguished line. Larson and Vogt proved that this signed count is bounded below by 0, and they conjectured that the signed count is bounded above by 8. We prove this conjecture using real algebraic geometry, plane geometry, and some properties of convex sets.
title Bounding the signed count of real bitangents to plane quartics
topic Algebraic Geometry
Primary: 14H50. Secondary: 14P99, 14N10
url https://arxiv.org/abs/2303.02008