Euclidean algorithms are Gaussian over imaginary quadratic fields

Fuente: arXiv
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Autores principales: Kim, Dohyeong, Lee, Jungwon, Lim, Seonhee
Formato: Preprint
Publicado: 2024
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author Kim, Dohyeong
Lee, Jungwon
Lim, Seonhee
author_facet Kim, Dohyeong
Lee, Jungwon
Lim, Seonhee
contents The distributional analysis of Euclidean algorithms was carried out by Baladi and Vallée. They showed the asymptotic normality of the number of division steps and associated costs in the Euclidean algorithm as a random variable on the set of rational numbers with bounded denominator based on the transfer operator methods. We extend their result to the Euclidean algorithm over appropriate imaginary quadratic fields by studying dynamics of the nearest integer complex continued fraction map, which is piecewise analytic and expanding but not a full branch map. By observing a finite Markov partition with a regular CW-structure, which enables us to associate the transfer operator acting on a direct sum of spaces of $C^1$-functions, we obtain the limit Gaussian distribution as well as residual equidistribution.
format Preprint
id arxiv_https___arxiv_org_abs_2401_00734
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Euclidean algorithms are Gaussian over imaginary quadratic fields
Kim, Dohyeong
Lee, Jungwon
Lim, Seonhee
Dynamical Systems
Number Theory
The distributional analysis of Euclidean algorithms was carried out by Baladi and Vallée. They showed the asymptotic normality of the number of division steps and associated costs in the Euclidean algorithm as a random variable on the set of rational numbers with bounded denominator based on the transfer operator methods. We extend their result to the Euclidean algorithm over appropriate imaginary quadratic fields by studying dynamics of the nearest integer complex continued fraction map, which is piecewise analytic and expanding but not a full branch map. By observing a finite Markov partition with a regular CW-structure, which enables us to associate the transfer operator acting on a direct sum of spaces of $C^1$-functions, we obtain the limit Gaussian distribution as well as residual equidistribution.
title Euclidean algorithms are Gaussian over imaginary quadratic fields
topic Dynamical Systems
Number Theory
url https://arxiv.org/abs/2401.00734