On the graph of the dimension function of the Lagrange and Markov spectra

Fuente: arXiv
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Main Authors: Matheus, Carlos, Moreira, Carlos Gustavo, Vytnova, Polina
Format: Preprint
Published: 2022
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author Matheus, Carlos
Moreira, Carlos Gustavo
Vytnova, Polina
author_facet Matheus, Carlos
Moreira, Carlos Gustavo
Vytnova, Polina
contents We study the graph of the function $d(t)$ encoding the Hausdorff dimensions of the classical Lagrange and Markov spectra with half-infinite lines of the form $(-\infty, t)$. For this sake, we use the fact that the Hausdorff dimension of dynamically Cantor sets drop after erasing an element of its Markov partition to determine twelve nontrivial plateaux of $d(t)$. Next, we employ rigorous numerical methods (from our recent joint paper with Pollicott) to produce approximations of the graph of $d(t)$ between these twelve plateaux. As a corollary, we prove that the largest ten non-trivial plateaux of $d(t)$ are exactly those plateaux with lengths $> 0.005$.
format Preprint
id arxiv_https___arxiv_org_abs_2212_11371
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle On the graph of the dimension function of the Lagrange and Markov spectra
Matheus, Carlos
Moreira, Carlos Gustavo
Vytnova, Polina
Number Theory
Dynamical Systems
11A55, 11J06, 37D35, 37M25
We study the graph of the function $d(t)$ encoding the Hausdorff dimensions of the classical Lagrange and Markov spectra with half-infinite lines of the form $(-\infty, t)$. For this sake, we use the fact that the Hausdorff dimension of dynamically Cantor sets drop after erasing an element of its Markov partition to determine twelve nontrivial plateaux of $d(t)$. Next, we employ rigorous numerical methods (from our recent joint paper with Pollicott) to produce approximations of the graph of $d(t)$ between these twelve plateaux. As a corollary, we prove that the largest ten non-trivial plateaux of $d(t)$ are exactly those plateaux with lengths $> 0.005$.
title On the graph of the dimension function of the Lagrange and Markov spectra
topic Number Theory
Dynamical Systems
11A55, 11J06, 37D35, 37M25
url https://arxiv.org/abs/2212.11371