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We study the conformal dimension of fractal percolation and show that, almost surely, the conformal dimension of a fractal percolation is strictly smaller than its Hausdorff dimension.

经典分析与常微分方程 · 数学 2020-04-17 Eino Rossi , Ville Suomala

We investigate a quasisymmetrically invariant counterpart of the topological Hausdorff dimension of a metric space. This invariant, called the topological conformal dimension, gives a lower bound on the topological Hausdorff dimension of…

度量几何 · 数学 2023-06-23 Claudio A. DiMarco

We study the non-Hermitian Hofstadter dynamics of a quantum particle with biased motion on a square lattice in the background of a magnetic field. We show that in quasi-momentum space the energy spectrum is an overlap of infinitely many…

统计力学 · 物理学 2015-10-14 M. N. Chernodub , Stephane Ouvry

We study dimensional properties of visible parts of fractal percolation in the plane. Provided that the dimension of the fractal percolation is at least 1, we show that, conditioned on non-extinction, almost surely all visible parts from…

经典分析与常微分方程 · 数学 2013-03-25 I. Arhosalo , E. Järvenpää , M. Järvenpää , M. Rams , P. Shmerkin

We relate various concepts of fractal dimension of the limiting set C in fractal percolation to the dimensions of the set consisting of connected components larger than one point and its complement in C (the "dust"). In two dimensions, we…

概率论 · 数学 2012-03-08 Erik Broman , Federico Camia , Matthijs Joosten , Ronald Meester

Fractal/non-fractal morphological transitions allow for the systematic study of the physics behind fractal morphogenesis in nature. In these systems, the fractal dimension is considered a non-thermal order parameter, commonly and…

斑图形成与孤子 · 物理学 2020-01-27 J. R. Nicolás-Carlock , J. M. Solano-Altamirano , J. L. Carrillo-Estrada

This is a survey paper about the fractal percolation process, also known as Mandelbrot percolation. It is intended to give a general breadth overview of more recent research in the topic, but also includes some of the more classical…

概率论 · 数学 2025-08-12 István Kolossváry , Sascha Troscheit

The class of stochastically self-similar sets contains many famous examples of random sets, e.g. Mandelbrot percolation and general fractal percolation. Under the assumption of the uniform open set condition and some mild assumptions on the…

度量几何 · 数学 2019-12-23 Sascha Troscheit

We establish several unifying principles that clarify the fractal properties of classical number expansions, which are generalized by the Perron expansions. In particular, we prove the fractal equivalence principle for the positive and…

数论 · 数学 2025-10-07 Mykola Moroz

\emph{Fractal percolation} or \emph{Mandelbrot percolation} is one of the most well studied families of random fractals. In this paper we study some of the geometric measure theoretical properties (dimension of projections and structure of…

动力系统 · 数学 2015-06-16 Michal Rams , Károly Simon

We compare the properties of transmission across one-dimensional finite samples which are associated with two types of "quantum diffusion", one related to a classical chaotic dynamics, the other to a multifractal energy spectrum. We…

凝聚态物理 · 物理学 2016-08-31 Fausto Borgonovi , Italo Guarneri

We consider several distances between two sets of points, which are modifications of the Hausdorff metric, and apply them to describe some fractals such as $\delta$-quasi-self-similar sets, and some other geometric notions in Euclidean…

度量几何 · 数学 2009-02-11 Junyang Yu

We unveil a novel mechanism for quasicondensation of hard-core bosons in the presence of quasiperiodicity-induced multifractal single-particle states. The new critical state, here dubbed fractal quasicondensate, is characterized by natural…

量子气体 · 物理学 2025-02-19 Flavio Riche , Miguel Gonçalves , Bruno Amorim , Eduardo V. Castro , Pedro Ribeiro

In this paper we study Poisson processes of so-called "fat" cylinders in hyperbolic space. As our main result we show that this model undergoes a percolation phase transition. We prove this by establishing a novel link between the fat…

概率论 · 数学 2024-12-24 Carina Betken , Erik Broman , Anna Gusakova , Christoph Thäle

We investigate the distortion of the Assouad dimension and (regularized) spectrum of sets under planar quasiregular maps. While the respective results for the Hausdorff and upper box-counting dimension follow immediately from their…

复变函数 · 数学 2024-11-18 Efstathios Konstantinos Chrontsios Garitsis

This paper provides a new model to compute the fractal dimension of a subset on a generalized-fractal space. Recall that fractal structures are a perfect place where a new definition of fractal dimension can be given, so we perform a…

混沌动力学 · 物理学 2010-07-23 M. A. Sánchez-Granero , Manuel Fernández-Martínez

In this paper, we propose a general mechanism for the existence of quasicrystals in spatially extended systems (partial differential equations with Euclidean symmetry). We argue that the existence of quasicrystals with higher order…

斑图形成与孤子 · 物理学 2025-02-04 Ian Melbourne , Jens Rademacher , Bob Rink , Sergey Zelik

We introduce a technique that uses projection properties of fractal percolation to establish dimension conservation results for sections of deterministic self-similar sets. For example, let $K$ be a self-similar subset of $\mathbb{R}^2$…

概率论 · 数学 2014-09-25 Kenneth Falconer , Xiong Jin

We show that fractal percolation sets in $\mathbb{R}^{d}$ almost surely intersect every hyperplane absolutely winning (HAW) set with full Hausdorff dimension. In particular, if $E\subset\mathbb{R}^{d}$ is a realization of a fractal…

概率论 · 数学 2019-12-23 Yiftach Dayan

Suppose $X$ is a compact connected metric space and $f: X \to X$ is a metric coarse expanding conformal map in the sense of Ha\"issinsky-Pilgrim. We show that if $X$ contains a homeomorphic copy of the letter "Y", then the Hausdorff…

度量几何 · 数学 2022-09-22 Insung Park , Angela Wu
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