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We consider B\'ezier curves with complex parameters, and we determine explicitly the affine iterated function system (IFS) corresponding to the de Casteljau subdivision algorithm, together with the complex parametric domain over which such…

数值分析 · 数学 2025-05-08 Lenka Ptackova , Franco Vivaldi

In 2013 Balka and M\'ath\'e showed that in uncountable polish spaces the typical compact set is not a fractal of any IFS. In 2008 Miculescu and Mihail introduced a concept of a generalized iterated function system (GIFS in short), a…

一般拓扑 · 数学 2019-06-03 Łukasz Maślanka

This paper discusses, certain algebraic, analytic, and topological results on partial iterated function systems($IFS_p$'s). Also, the article proves the Collage theorem for partial iterated function systems. Further, it provides a method to…

动力系统 · 数学 2022-12-09 Praveen M , Sunil Mathew

We study weakly hyperbolic iterated function systems on compact spaces, as defined by Edalat, but in the more general setting of a compact parameter space. We prove the existence of attractors, both in the topological and measure…

动力系统 · 数学 2016-10-03 Alexander Arbieto , André Junqueira , Bruno Santiago

In the paper, we define a class of new fractals named ``non-autonomous attractors", which are the generalization of classic Moran sets and attractors of iterated function systems. Simply to say, we replace the similarity mappings by…

经典分析与常微分方程 · 数学 2024-02-06 Yifei Gu , Jun Jie Miao

Within the new concept of a local iterated function system (local IFS), we consider a class of attractors of such IFSs, namely those that are graphs of functions. These new functions are called local fractal functions and they extend and…

泛函分析 · 数学 2014-08-28 Peter Massopust

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…

动力系统 · 数学 2025-09-29 Simon Baker , Amlan Banaji , De-Jun Feng , Chun-Kit Lai , Ying Xiong

The main result of this paper states that for a given countable system of data, there exists a countable iterated function system consisting of Rakotch contractions, such that its attractor is the graph of a fractal interpolation function…

动力系统 · 数学 2021-07-20 Cristina Maria Pacurar

We investigate iterated function systems (IFS) that randomly alternate between two non-identical one-dimensional maps. Our primary focus is on finite invariant sets exhibiting ``toss-and-catch'' dynamics, in which trajectories alternate…

动力系统 · 数学 2026-04-16 Hibiki Kato , Tamotsu Onozaki , Yoshitaka Saiki , Yasumasa Sugita

We investigate certain spectral properties of the Bernoulli convolution measures on attractor sets arising from iterated function systems on the real line. In particular, we examine collections of orthogonal exponential functions in the…

算子代数 · 数学 2010-07-07 Palle Jorgensen , Keri Kornelson , Karen Shuman

Given an infinite iterated function system (IFS) $\mathcal{F}$, we define its dimension spectrum $D(\mathcal{F})$ to be the set of real numbers which can be realised as the dimension of some subsystem of $\mathcal{F}$. In the case where…

动力系统 · 数学 2020-04-28 Natalia Jurga

This paper is partly an exposition, and partly an extension of our work [1] to the multiparameter case. We consider certain classes of parametrized dynamically defined measures. These are push-forwards, under the natural projection, of…

动力系统 · 数学 2024-05-13 Balázs Bárány , Károly Simon , Boris Solomyak , Adam Śpiewak

In this paper are investigated strictly self-similar fractals that are composed of an infinite number of regular star-polygons, also known as Sierpinski $n$-gons, $n$-flakes or polyflakes. Construction scheme for Sierpinsky $n$-gon and…

动力系统 · 数学 2015-02-06 Vassil Tzanov

Suppose a graph-directed iterated function system consists of maps f_e with upper estimates of the form d(f_e(x),f_e(y)) <= r_e d(x,y). Then the fractal dimension of the attractor K_v of the IFS is bounded above by the dimension associated…

经典分析与常微分方程 · 数学 2010-04-11 G. A. Edgar , Jeffrey Golds

We prove that the idempotent Markov operator generated by contractive max plus normalized iterated function system (IFS) is also a contractive map w.r.t. natural metrics on the space of idempotent measures. This gives alternative proofs of…

动力系统 · 数学 2022-09-14 Rudnei D. da Cunha , Elismar R. Oliveira , Filip Strobin

Let $(b_k)_{k = 0}^\infty$ be strictly decreasing sequence of real numbers such that $b_0 = 1$ and $\{f_k:[b_k,b_{k-1}]\to [0,1]\}_{k\in\N}$ be decreasing functions such that $f_k(b_k) = 1$ and $f_k(b_{k-1}) = 0$, $k = 1, 2, \dots$. By…

动力系统 · 数学 2026-03-30 Rafał Tryniecki

This paper introduces an intrinsic theory of Thermodynamic Formalism for Iterated Functions Systems with general positive continuous weights (IFSw).We study the spectral properties of the Transfer and Markov operators and one of our first…

动力系统 · 数学 2017-07-07 L. Cioletti , Elismar R. Oliveira

In this paper, we investigate the Hausdorff dimension of the invariant measures of the iterated function system (IFS) $\{\alpha x, \beta x, \gamma x+(1-\gamma)\}$. We provide an "almost every" type result by a direct application of the…

动力系统 · 数学 2020-01-15 Balázs Bárány , Edina Szvák

IFS fractals - the attractors of Iterated Function Systems - have motivated plenty of research to date, partly due to their simplicity and applicability in various fields, such as the modeling of plants in computer graphics, and the design…

动力系统 · 数学 2015-06-12 József Vass

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