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The box counting dimension $d_C$ and the correlation dimension $d_G$ change with the number of numerically generated points forming the attractor. At a sufficiently large number of points the fractal dimension tends to a finite value. The…

混沌动力学 · 物理学 2014-09-15 Mariusz Tarnopolski

Follow-up comment by the author: Theorem 2.2 in this paper is a special case of Theorems 1.1 and 4.1 in the article "Weighted thermodynamic formalism on subshifts and applications", Asian J. Math. 16 (2012), by J. Barral and D. J. Feng. In…

动力系统 · 数学 2024-12-17 Nima Alibabaei

In this paper we consider affine iterated function systems in locally compact non-Archimedean field $\mathbb{F}$. We establish the theory of singular value composition in $\mathbb{F}$ and compute box and Hausdorff dimension of self-affine…

经典分析与常微分方程 · 数学 2023-06-07 Yang Deng , Bing Li , Hua Qiu

We investigate the box dimensions of inhomogeneous self-similar sets. Firstly, we extend some results of Olsen and Snigireva by computing the upper box dimensions assuming some mild separation conditions. Secondly, we investigate the more…

度量几何 · 数学 2013-07-26 Jonathan M. Fraser

We consider iterated function systems on the real line that consist of continuous, piecewise linear functions. Under a mild separation condition, we show that the Hausdorff and box dimensions of the attractor are equal to the minimum of 1…

动力系统 · 数学 2023-02-10 R. D. Prokaj , P. Raith , K. Simon

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

In this paper we study the range of possible almost sure dimensions of random measures arising from a natural model of random Moran measures. Specifically, we consider the Assouad-like ``large'' $\Phi$-dimensions of these measures. These…

经典分析与常微分方程 · 数学 2026-04-14 Kathryn E. Hare , Franklin Mendivil

We compute the almost sure Hausdorff dimension of random self-affine sponges in $\mathbb{R}^d$ without imposing any separation conditions. In this context, randomness arises from the matrices in the defining semigroup, which are random yet…

动力系统 · 数学 2025-05-08 Balázs Bárány , Antti Käenmäki , Michał Rams

Previous study of the Assouad dimension of planar self-affine sets has relied heavily on the underlying IFS having a `grid structure', thus allowing for the use of approximate squares. We study the Assouad dimension of a class of…

经典分析与常微分方程 · 数学 2018-04-26 Jonathan M. Fraser , Thomas Jordan

This paper presents a general procedure based on using the method of types to calculate the box dimension of sets. The approach unifies and simplifies multiple box counting arguments. In particular, we use it to generalize the formula for…

度量几何 · 数学 2021-02-23 István Kolossváry

We consider the dimensions of a family of self-affine sets related to the Bedford-McMullen carpets. In particular, we fix a Bedford-McMullen system and then randomise the translation vectors with the stipulation that the column structure is…

动力系统 · 数学 2017-03-30 Jonathan Fraser , Pablo Shmerkin

In this paper, we introduce a new notion called the \emph{box-counting measure} of a metric space. We show that for a doubling metric space, an Ahlfors regular measure is always a box-counting measure; consequently, if $E$ is a self-similar…

度量几何 · 数学 2022-11-30 Liang-yi Huang , Hui Rao , Zhiying Wen , Yan-li Xu

In this paper, we define inhomogeneous Graph-Directed (GD) separation conditions for a given inhomogeneous GD Iterated Function Systems (IFS), and estimate the upper box dimension of attractors by the dimension of the condensation set and…

动力系统 · 数学 2023-06-14 Shivam Dubey , Saurabh Verma

We extend Falconer's 1988 landmark result on the dimensions of self-affine fractals to encompass the dimensions of their projections, showing furthermore that their families of exceptional projections contain algebraic varieties which are…

动力系统 · 数学 2025-02-07 Ian Morris , Cagri Sert

Let $E, F\subset {\Bbb R}^d$ be two self-similar sets, and suppose that $F$ can be affinely embedded into $E$. Under the assumption that $E$ is dust-like and has a small Hausdorff dimension, we prove the logarithmic commensurability between…

经典分析与常微分方程 · 数学 2016-09-20 De-Jun Feng , Ying Xiong

For countably infinite IFSs on $\mathbb R^2$ consisting of affine contractions with diagonal linear parts, we give conditions under which the affinity dimension is an upper bound for the Hausdorff dimension and a lower bound for the lower…

动力系统 · 数学 2026-01-14 S. van Golden , C. Kalle , S. Kombrink , T. Samuel

We consider several different models for generating random fractals including random self-similar sets, random self-affine carpets, and fractal percolation. In each setting we compute either the \emph{almost sure} or the \emph{Baire…

度量几何 · 数学 2018-04-26 Jonathan M. Fraser , Jun Jie Miao , Sascha Troscheit

We explore a notion of pseudofinite dimension, introduced by Hrushovski and Wagner, on an infinite ultraproduct of finite structures. Certain conditions on pseudofinite dimension are identified that guarantee simplicity or supersimplicity…

逻辑 · 数学 2014-10-01 Dario Garcia , Dugald Macpherson , Charles Steinhorn

We study the fractal dimension of a class of solenoidal attractors in dimensions greater or equal than 3, proving that if the contraction is sufficiently strong, the expansion is close to conformal and the attractor satisfy a geometrical…

动力系统 · 数学 2022-08-16 Ricardo Bortolotti , Eberson Ferreira da Silva

Many natural systems show emergent phenomena at different scales, leading to scaling regimes with signatures of chaos at large scales and an apparently random behavior at small scales. These features are usually investigated quantitatively…