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In this paper we introduce and develop the theory of non-autonomous graph directed Markov systems which is a generalization of the theory of conformal graph directed Markov systems of Mauldin and Urba\'nski, first presented in their book,…

Dynamical Systems · Mathematics 2017-07-03 Jason Atnip

We consider small perturbations of a conformal iterated function system (CIFS) produced by either adding or removing some generators with small derivative from the original. We establish a formula, utilizing transfer operators arising from…

Dynamical Systems · Mathematics 2023-02-24 Tushar Das , Lior Fishman , David Simmons , Mariusz Urbański

In the paper, we study the generalized $q$-dimensions of measures supported by nonautonomous attractors, which are the generalization of classic Moran sets and attractors of iterated function systems. First, we estimate the generalized…

Dynamical Systems · Mathematics 2024-11-27 Yifei Gu , Jun Jie Miao

Given a finite set $\mathcal{A} \subseteq \mathrm{SL}(2,\mathbb{R})$ we study the dimension of the attractor $K_\mathcal{A}$ of the iterated function system induced by the projective action of $\mathcal{A}$. In particular, we generalise a…

Dynamical Systems · Mathematics 2020-07-14 Argyrios Christodoulou , Natalia Jurga

In this article we investigate the pressure function and affinity dimension for iterated function systems associated to the "box-like" self-affine fractals investigated by D.-J. Feng, Y. Wang and J.M. Fraser. Combining previous results of…

Metric Geometry · Mathematics 2017-03-31 Ian D. Morris

We study Non-autonomous Iterated Function Systems (NIFSs) with overlaps. A NIFS on a compact subset $X\subset\mathbb{R}^m$ is a sequence $\Phi=(\{\phi^{(j)}_{i}\}_{i\in I^{(j)}})_{j=1}^{\infty}$ of collections of uniformly contracting maps…

Dynamical Systems · Mathematics 2023-12-22 Yuto Nakajima

We study the Hausdorff dimension of Poissonian cutout sets defined via inhomogeneous intensity measures on Ahlfors-regular metric spaces. We obtain formulas for the Hausdorff dimension of such cutouts in self-similar and self-conformal…

Dynamical Systems · Mathematics 2016-08-02 Tuomo Ojala , Ville Suomala , Meng Wu

We study various measure theories using the classical approach and then compute the Hausdorff dimension of some simple objects and self-similar fractals. We then develop a nonstandard approach to these measure theories and examine the…

Logic · Mathematics 2018-12-06 Mee Seong Im

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…

Metric Geometry · Mathematics 2023-06-23 Claudio A. DiMarco

In this paper, we introduce and investigate the notions of Mean Dimension and Metric Mean Dimension for generalized iterated function systems (IFS). We establish basic properties of these invariants and prove that Mean Dimension is always…

Dynamical Systems · Mathematics 2026-04-15 Welington Cordeiro , Maria José Pacifico , Xuan Zhang

For the countable discrete amenable group actions, we calculate the mean Hausdorff dimensions of three types of infinite dimensional fractal systems, the self-similar systems, homogeneous systems in the infinite-dimensional torus, and the…

Dynamical Systems · Mathematics 2024-11-13 Xianqiang Li , Xiaofang Luo

We study the Hausdorff and box-counting dimensions of cookie-cutter-like sets formed by sequential dynamics of a finite number of expanding maps. Under some natural conditions, these dimensions turn out to be the minimum and maximum of the…

Dynamical Systems · Mathematics 2025-11-12 Victor Kleptsyn , Alexandro Luna

We study the geometric and topological properties of strange non-chaotic attractors created in non-smooth saddle-node bifurcations of quasiperiodically forced interval maps. By interpreting the attractors as limit objects of the iterates of…

Dynamical Systems · Mathematics 2014-12-22 Gabriel Fuhrmann , Maik Gröger , Tobias Jäger

We calculate the Hausdorff dimension of path-dependent shrinking target sets in generic affine iterated function systems. Here, by a path-dependent shrinking target set, we mean a set of points whose orbits infinitely often hit small balls…

Dynamical Systems · Mathematics 2022-10-12 Henna Koivusalo , Lingmin Liao , Michal Rams

In this note we consider the Hausdorff dimension of self-affine sets with random perturbations. We extend previous work in this area by allowing the random perturbation to be distributed according to distributions with unbounded support as…

Dynamical Systems · Mathematics 2014-05-09 Thomas Jordan , Natalia Jurga

Measures generated by Iterated Function Systems composed of uncountably many one--dimensional affine maps are studied. We present numerical techniques as well as rigorous results that establish whether these measures are absolutely or…

Dynamical Systems · Mathematics 2011-06-23 Giorgio Mantica

In this paper, we construct an iterated function system on the line consisting of two bi-Lipschitz contractions whose attractor has distinct lower, Hausdorff, lower box, upper box, and Assouad dimensions, thereby providing negative answers…

Dynamical Systems · Mathematics 2025-09-29 Simon Baker , Amlan Banaji , De-Jun Feng , Chun-Kit Lai , Ying Xiong

We study Fourier frames of exponentials on fractal measures associated with a class of affine iterated function systems. We prove that, under a mild technical condition, the Beurling dimension of a Fourier frame coincides with the Hausdorff…

Functional Analysis · Mathematics 2010-06-07 Dorin Ervin Dutkay , Deguang Han , Qiyu Sun , Eric Weber

We prove a quantitative distortion theorem for iterated function systems that generate sets of continued fractions. As a consequence, we obtain upper and lower bounds on the Hausdorff dimension of any set of real or complex continued…

Number Theory · Mathematics 2020-02-25 Daniel Ingebretson

We introduce two frameworks in order to deal with fractal and multi-fractal analysis for subset sum problems where some embedding into the $1$-dimensional Euclidean space plays an important role. As one of these frameworks, the notion of…

Combinatorics · Mathematics 2020-08-24 Shoichi Kamada