Profinite Iterated Monodromy Groups of Unicritical Polynomials

Fuente: arXiv
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Main Authors: Adams, Ophelia, Hyde, Trevor
Format: Preprint
Published: 2025
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author Adams, Ophelia
Hyde, Trevor
author_facet Adams, Ophelia
Hyde, Trevor
contents Let $f(x) = ax^d + b \in K[x]$ be a unicritical polynomial with degree $d \geq 2$ which is coprime to $\mathrm{char} K$. We provide an explicit presentation for the profinite iterated monodromy group of $f$, analyze the structure of this group, and use this analysis to determine the constant field extension in $K(f^{-\infty}(t))/K(t)$.
format Preprint
id arxiv_https___arxiv_org_abs_2504_13028
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Profinite Iterated Monodromy Groups of Unicritical Polynomials
Adams, Ophelia
Hyde, Trevor
Number Theory
Dynamical Systems
37P05
Let $f(x) = ax^d + b \in K[x]$ be a unicritical polynomial with degree $d \geq 2$ which is coprime to $\mathrm{char} K$. We provide an explicit presentation for the profinite iterated monodromy group of $f$, analyze the structure of this group, and use this analysis to determine the constant field extension in $K(f^{-\infty}(t))/K(t)$.
title Profinite Iterated Monodromy Groups of Unicritical Polynomials
topic Number Theory
Dynamical Systems
37P05
url https://arxiv.org/abs/2504.13028