Polynomial Inscriptions

Fuente: arXiv
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Main Authors: Greene, Joshua Evan, Lobb, Andrew
Format: Preprint
Published: 2024
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author Greene, Joshua Evan
Lobb, Andrew
author_facet Greene, Joshua Evan
Lobb, Andrew
contents We prove that for every smooth Jordan curve $γ\subset \mathbb{C}$ and for every set $Q \subset \mathbb{C}$ of six concyclic points, there exists a non-constant quadratic polynomial $p \in \mathbb{C}[z]$ such that $p(Q) \subset γ$. The proof relies on a theorem of Fukaya and Irie. We also prove that if $Q$ is the union of the vertex sets of two concyclic regular $n$-gons, there exists a non-constant polynomial $p \in \mathbb{C}[z]$ of degree at most $n-1$ such that $p(Q) \subset γ$. The proof is based on a computation in Floer homology. These results support a conjecture about which point sets $Q \subset \mathbb{C}$ admit a polynomial inscription of a given degree into every smooth Jordan curve $γ$.
format Preprint
id arxiv_https___arxiv_org_abs_2412_09546
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Polynomial Inscriptions
Greene, Joshua Evan
Lobb, Andrew
Symplectic Geometry
Algebraic Geometry
Combinatorics
Geometric Topology
Metric Geometry
We prove that for every smooth Jordan curve $γ\subset \mathbb{C}$ and for every set $Q \subset \mathbb{C}$ of six concyclic points, there exists a non-constant quadratic polynomial $p \in \mathbb{C}[z]$ such that $p(Q) \subset γ$. The proof relies on a theorem of Fukaya and Irie. We also prove that if $Q$ is the union of the vertex sets of two concyclic regular $n$-gons, there exists a non-constant polynomial $p \in \mathbb{C}[z]$ of degree at most $n-1$ such that $p(Q) \subset γ$. The proof is based on a computation in Floer homology. These results support a conjecture about which point sets $Q \subset \mathbb{C}$ admit a polynomial inscription of a given degree into every smooth Jordan curve $γ$.
title Polynomial Inscriptions
topic Symplectic Geometry
Algebraic Geometry
Combinatorics
Geometric Topology
Metric Geometry
url https://arxiv.org/abs/2412.09546