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Related papers: Tanaka-Ito ${\alpha}$-continued fractions and matc…

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We consider the one-parameter family of interval maps arising from generalized continued fraction expansions known as alpha-continued fractions. For such maps, we perform a numerical study of the behaviour of metric entropy as a function of…

Dynamical Systems · Mathematics 2015-05-14 Carlo Carminati , Stefano Marmi , Alessandro Profeti , Giulio Tiozzo

We consider a one-parameter family of expanding interval maps $\{T_{\alpha}\}_{\alpha \in [0,1]}$ (japanese continued fractions) which include the Gauss map ($\alpha=1$) and the nearest integer and by-excess continued fraction maps…

Dynamical Systems · Mathematics 2007-05-23 Laura Luzzi , Stefano Marmi

As a natural counterpart to Nakada's $\alpha$-continued fraction maps, we study a one-parameter family of continued fraction transformations with an indifferent fixed point. We prove that matching holds for Lebesgue almost every parameter…

Dynamical Systems · Mathematics 2019-12-24 Charlene Kalle , Niels Langeveld , Marta Maggioni , Sara Munday

We show the ergodicity of Tanaka-Ito type $\alpha$-continued fraction maps and construct their natural extensions. We also discuss the relation between entropy and the size of the natural extension domain.

Dynamical Systems · Mathematics 2020-03-12 Hitoshi Nakada , Wolfgang Steiner

We construct a countable family of open intervals contained in (0,1] whose endpoints are quadratic surds and such that their union is a full measure set. We then show that these intervals are precisely the monotonicity intervals of the…

Dynamical Systems · Mathematics 2012-09-06 Carlo Carminati , Giulio Tiozzo

We study the ergodic theory of a one-parameter family of interval maps T_alpha arising from generalized continued fraction algorithms. First of all, we prove the dependence of the metric entropy of T_alpha to be Hoelder-continuous in the…

Dynamical Systems · Mathematics 2011-11-01 Giulio Tiozzo

We study the dynamics of a family K_alpha of discontinuous interval maps whose (infinitely many) branches are Moebius transformations in SL(2, Z), and which arise as the critical-line case of the family of (a, b)-continued fractions. We…

Dynamical Systems · Mathematics 2013-12-25 Carlo Carminati , Stefano Isola , Giulio Tiozzo

In this paper we consider a class of continued fraction expansions: the so-called $N$-expansions with a finite digit set, where $N\geq 2$ is an integer. These \emph{$N$-expansions with a finite digit set} were introduced in [KL,L], and…

Dynamical Systems · Mathematics 2022-09-20 Yufei Chen , Cor Kraaikamp

We consider the family of piecewise linear maps $F(x,y)=\left(|x| - y + a, x - |y| + b\right),$ where $(a,b)\in \R^2$. In previous work, we identified a novel phenomenon: certain maps of this class possess one-dimensional invariant sets,…

Dynamical Systems · Mathematics 2026-05-29 Anna Cima , Armengol Gasull , Víctor Mañosa , Francesc Mañosas

In this paper we construct a correspondence between the parameter spaces of two families of one-dimensional dynamical systems, the alpha-continued fraction transformations T_alpha and unimodal maps. This correspondence identifies…

Dynamical Systems · Mathematics 2013-10-30 Claudio Bonanno , Carlo Carminati , Stefano Isola , Giulio Tiozzo

We introduce a new, large class of continued fraction algorithms producing what are called contracted Farey expansions. These algorithms are defined by coupling two acceleration techniques -- induced transformations and contraction -- in…

Number Theory · Mathematics 2025-04-04 Karma Dajani , Cor Kraaikamp , Slade Sanderson

Recently a new class of continued fraction algorithms, the $(N,\alpha$)-expansions, was introduced for each $N\in\mathbb{N}$, $N\geq 2$ and $\alpha \in (0,\sqrt{N}-1]$. Each of these continued fraction algorithms has only finitely many…

Dynamical Systems · Mathematics 2023-10-26 Cor Kraaikamp , Niels Langeveld

We construct a natural extension for each of Nakada's $\alpha$-continued fractions and show the continuity as a function of $\alpha$ of both the entropy and the measure of the natural extension domain with respect to the density function…

Dynamical Systems · Mathematics 2012-07-04 Cor Kraaikamp , Thomas A. Schmidt , Wolfgang Steiner

We study an extension of the sandwiched R\'enyi relative entropies for normal positive functionals on a von Neumann algebra, for parameter values $\alpha\in [1/2,1)$. This work is intended as a continuation of [A. Jen\v{c}ov\'a, Ann. Henri…

Quantum Physics · Physics 2021-11-08 Anna Jenčová

We study an infinite family of one-parameter deformations, so-called $\alpha$-continued fractions, of interval maps associated to distinct triangle Fuchsian groups. In general for such one-parameter deformations, the function giving the…

Dynamical Systems · Mathematics 2017-01-18 Kariane Calta , Cor Kraaikamp , Thomas A. Schmidt

We extend the results of our 2020 paper in the Annali della Scuola Normale Superiore di Pisa, Classe di Scienze. There, we associated to each of an infinite family of triangle Fuchsian groups a one-parameter family of continued fraction…

Dynamical Systems · Mathematics 2023-03-20 Kariane Calta , Cor Kraaikamp , Thomas A. Schmidt

In an article (which we will refer to as [BM]) of Boca and the fourth author of this paper, a new class of continued fraction expansions with odd partial quotients, parameterized by a parameter $\alpha\in [g,G]$, where…

Dynamical Systems · Mathematics 2021-06-18 Yusuf Hartono , Cor Kraaikamp , Niels Langeveld , Claire Merriman

We prove a suite of dynamical results, including exactness of the transformation and piecewise-analyticity of the invariant measure, for a family of continued fraction systems, including specific examples over reals, complex numbers,…

Dynamical Systems · Mathematics 2023-03-07 Anton Lukyanenko , Joseph Vandehey

We show that two notions of continued fraction normality, one where overlapping occurrences of finite patterns are counted as distinct occurrences, and another where only disjoint occurrences are counted as distinct, are identical. This…

Dynamical Systems · Mathematics 2019-09-11 Satyadev Nandakumar , Subin Pulari , Prateek Vishnoi , Gopal Viswanathan

We study the topological entropy of a two-parameter family of maps related to (a,b)-continued fraction algorithms and prove that it is constant on a square within the parameter space (two vertices of this square correspond to well-studied…

Dynamical Systems · Mathematics 2023-04-26 Adam Abrams , Svetlana Katok , Ilie Ugarcovici
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