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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

In this paper we study the Assouad-like $\Phi$ dimensions of sets and measures that are constructed by a random weighted iterated function system of similarities. These dimensions are distinguished by the depth of the scales considered and…

经典分析与常微分方程 · 数学 2025-03-27 Kathryn E. Hare , Franklin Mendivil

The Assouad dimension of the limit set of a geometrically finite Kleinian group with parabolics may exceed the Hausdorff and box dimensions. The Assouad \emph{spectrum} is a continuously parametrised family of dimensions which…

动力系统 · 数学 2024-03-20 Jonathan M. Fraser , Liam Stuart

The $\phi$-Assouad dimensions are a family of dimensions which interpolate between the upper box and Assouad dimensions. They are a generalization of the well-studied Assouad spectrum with a more general form of scale sensitivity that is…

经典分析与常微分方程 · 数学 2025-07-10 Amlan Banaji , Alex Rutar , Sascha Troscheit

We introduce a new dimension spectrum motivated by the Assouad dimension; a familiar notion of dimension which, for a given metric space, returns the minimal exponent $\alpha\geq 0$ such that for any pair of scales $0<r<R$, any ball of…

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

We introduce a probability distribution on $\mathcal{P}([0,1]^d)$, the space of all Borel probability measures on $[0,1]^d$. Under this distribution, almost all measures are shown to have infinite upper quasi-Assouad dimension and zero…

度量几何 · 数学 2019-09-26 Wanchun Shen

For a self-similar set in $\mathbb{R}^d$ that is the attractor of an iterated function system that does not verify the weak separation property, Fraser, Henderson, Olson and Robinson showed that its Assouad dimension is at least $1$. In…

经典分析与常微分方程 · 数学 2020-07-02 Ignacio García

We study the dimension theory of limit sets of iterated function systems consisting of a countably infinite number of conformal contractions. Our focus is on the Assouad type dimensions, which give information about the local structure of…

动力系统 · 数学 2024-03-14 Amlan Banaji , Jonathan M. Fraser

We introduce and study bi-Lipschitz-invariant dimensions that range between the box and Assouad dimensions. The quasi-Assouad dimensions and $\theta$-spectrum are other special examples of these intermediate dimensions. These dimensions are…

经典分析与常微分方程 · 数学 2020-09-09 Ignacio García , Kathryn Hare , Franklin Mendivil

In analogy with the lower Assouad dimensions of a set, we study the lower Assouad dimensions of a measure. As with the upper Assouad dimensions, the lower Assouad dimensions of a measure provide information about the extreme local behaviour…

度量几何 · 数学 2021-07-01 Kathryn E. Hare , Sascha Troscheit

Intermediate dimensions were recently introduced to interpolate between the Hausdorff and box-counting dimensions of fractals. Firstly, we show that these intermediate dimensions may be defined in terms of capacities with respect to certain…

经典分析与常微分方程 · 数学 2021-05-21 Stuart A. Burrell , Kenneth J. Falconer , Jonathan M. Fraser

Moran sets are a non-autonomous generalization of self-similar sets. In this paper, we study the quasi-Assouad and Assouad dimensions of Moran sets in $\mathbb{R}^{d}$. First we provide quasi-Assouad dimension formulae for Moran sets…

动力系统 · 数学 2025-11-13 Junjie Miao , Minghui Xu

In this paper, we determine the almost sure values of the $\Phi $-dimensions of random measures supported on random Moran sets that satisfy a uniform separation condition. The $\Phi $-dimensions are intermediate Assouad-like dimensions, the…

经典分析与常微分方程 · 数学 2021-05-31 Kathryn E. Hare , Franklin Mendivil

We calculate the Assouad dimension of a planar self-affine set $X$ satisfying the strong separation condition and the projection condition and show that $X$ is minimal for the conformal Assouad dimension. Furthermore, we see that such a…

动力系统 · 数学 2020-06-23 Balázs Bárány , Antti Käenmäki , Eino Rossi

We consider several classical results related to the Hausdorff dimension of exceptional sets of orthogonal projections and try to find out whether they have reasonable formulations in terms of packing dimension. We also investigate the…

经典分析与常微分方程 · 数学 2015-05-19 Tuomas Orponen

In this paper, we determine the almost sure values of the $\Phi$-dimensions of random measures $\mu$ supported on random Moran sets in $\R^d$ that satisfy a uniform separation condition. This paper generalizes earlier work done on random…

经典分析与常微分方程 · 数学 2026-02-23 Kathryn E. Hare , Franklin Mendivil

If $X$ is a set with finite Assouad dimension, it is known that the Assouad dimension of $X-X$ does not necessarily obey any non-trivial bound in terms of the Assouad dimension of $X$. In this paper, we consider self-similar sets on the…

动力系统 · 数学 2020-01-09 Alexandros Margaris , Eric J. Olson , James C. Robinson

We derive an upper bound for the Assouad dimension of visible parts of self-similar sets generated by iterated function systems with finite rotation groups and satisfying the open set condition. The bound is valid for all visible parts and…

动力系统 · 数学 2022-03-21 Esa Järvenpää , Maarit Järvenpää , Ville Suomala , Meng Wu

We investigate the distortion of Assouad dimension and the Assouad spectrum under Euclidean quasiconformal maps. Our results complement existing conclusions for Hausdorff and box-counting dimension due to Gehring--V\"ais\"al\"a and others.…

复变函数 · 数学 2022-07-28 Efstathios Konstantinos Chrontsios Garitsis , Jeremy T. Tyson

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