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Fractal dimension is defined on the base of entropy, including macro state entropy and information entropy. The generalized correlation dimension of multifractals is based on Renyi entropy. However, the mathematical transform from entropy…

物理与社会 · 物理学 2020-11-17 Yanguang Chen

We discuss a number of techniques for determining the Minkowski dimension of bounded subsets of some Euclidean space of any dimension, including: the box-counting dimension and equivalent definitions based on various box-counting functions;…

数学物理 · 物理学 2013-02-04 Michel L. Lapidus , John A. Rock , Darko Žubrinić

We consider fixed-point equations for probability measures charging measured compact metric spaces that naturally yield continuum random trees. On the one hand, we study the existence/uniqueness of the fixed-points and the convergence of…

概率论 · 数学 2021-05-05 Nicolas Broutin , Henning Sulzbach

The main goal of this paper has a double purpose. On the one hand, we propose a new definition in order to compute the fractal dimension of a subset respect to any fractal structure, which completes the theory of classical box-counting…

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

Spatial patterns and processes of cities can be described with various entropy functions. However, spatial entropy always depends on the scale of measurement, and it is difficult to find a characteristic value for it. In contrast, fractal…

物理与社会 · 物理学 2018-12-19 Yanguang Chen , Jiejing Wang , Jian Feng

In this paper, we introduce a new concept: the transfinite fractal dimension of graph sequences motivated by the notion of fractality of complex networks proposed by Song et al. We show that the definition of fractality cannot be applied to…

组合数学 · 数学 2019-02-26 Júlia Komjáthy , Roland Molontay , Károly Simon

We introduce a framework for constructing fractal trees via analytic generator fields, replacing discrete affine transformations and symbolic rewriting rules by the integration of smooth vector fields in an internal state space. In this…

动力系统 · 数学 2026-02-04 Henk Mulder

In this article a collection of random self-similar fractal dendrites is constructed, and their Hausdorff dimension is calculated. Previous results determining this quantity for random self-similar structures have relied on geometrical…

概率论 · 数学 2012-10-23 David A. Croydon

We provide a rigorous study on dimensions of fractal interpolation function defined on a closed and bounded interval of $\mathbb{R}$ which is associated to a continuous function with respect to a base function, scaling functions and a…

动力系统 · 数学 2020-12-01 S. Verma , S. Jha

We use the self-similar tilings constructed by the second author in "Canonical self-affine tilings by iterated function systems" to define a generating function for the geometry of a self-similar set in Euclidean space. This tubular zeta…

动力系统 · 数学 2011-02-01 Michel L. Lapidus , Erin P. J. Pearse

We study algorithmic problems on subsets of Euclidean space of low fractal dimension. These spaces are the subject of intensive study in various branches of mathematics, including geometry, topology, and measure theory. There are several…

数据结构与算法 · 计算机科学 2017-03-29 Anastasios Sidiropoulos , Vijay Sridhar

We propose that the recently defined persistent homology dimensions are a practical tool for fractal dimension estimation of point samples. We implement an algorithm to estimate the persistent homology dimension, and compare its performance…

动力系统 · 数学 2020-01-29 Jonathan Jaquette , Benjamin Schweinhart

In this paper we construct a self-similar fractal configured as an infinitely branched tree and equip it with a regular self-similar Dirichlet form. We show anomalous behaviour of the mean exit time with respect to typical metric balls.…

偏微分方程分析 · 数学 2026-05-18 Caoxu Huang , Guanhua Liu

We introduce appropriate definitions of dimensions in order to characterize the fractal properties of complex networks. We compute these dimensions in a hierarchically structured network of particular interest. In spite of the nontrivial…

凝聚态物理 · 物理学 2007-09-23 Victor M. Eguiluz , Emilio Hernandez-Garcia , Oreste Piro , Konstantin Klemm

We present an overview of a theory of complex dimensions of self-similar fractal strings, and compare this theory to the theory of varieties over a finite field from the geometric and the dynamical point of view. Then we combine the several…

数论 · 数学 2007-05-23 Michel L. Lapidus , Machiel van Frankenhuijsen

There are various notions of dimension in fractal geometry to characterise (random and non-random) subsets of $\mathbb R^d$. In this expository text, we discuss their analogues for infinite subsets of $\mathbb Z^d$ and, more generally, for…

概率论 · 数学 2019-12-12 Markus Heydenreich

We consider a class of infinite weighted metric trees obtained as perturbations of self-similar regular trees. Possible definitions of the boundary traces of functions in the Sobolev space on such a structure are discussed by using…

数学物理 · 物理学 2025-09-29 Valentina Franceschi , Kiyan Naderi , Konstantin Pankrashkin

The concept of self-similarity on subsets of algebraic varieties is defined by considering algebraic endomorphisms of the variety as `similarity' maps. Self-similar fractals are subsets of algebraic varieties which can be written as a…

数论 · 数学 2015-04-21 Arash Rastegar

Homogeneity and isotropy of the universe at sufficiently large scales is a fundamental premise on which modern cosmology is based. Fractal dimensions of matter distribution is a parameter that can be used to test the hypothesis of…

天体物理学 · 物理学 2009-09-10 J. S. Bagla , Jaswant Yadav , T. R. Seshadri

We present a construction, called the limit of a tree system of spaces (or, less formally, a tree of spaces). The construction is designed to produce compact metric spaces that resemble fractals, out of more regular spaces, such as closed…

几何拓扑 · 数学 2020-09-30 Jacek Swiatkowski
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