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Related papers: Assouad type dimensions for self-affine sponges

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The upper and lower Assouad dimensions of a metric space are local variants of the box dimensions of the space and provide quantitative information about the `thickest' and `thinnest' parts of the set. Less extreme versions of these…

Classical Analysis and ODEs · Mathematics 2021-02-03 Kathryn E. Hare , Kevin G. Hare

This paper investigates the analytic and structural properties of the $\phi$-lower Assouad dimension, a generalized notion extending the lower Assouad dimension. We establish the equivalence of $\phi$-lower Assouad dimensions with respect…

Classical Analysis and ODEs · Mathematics 2026-02-10 Haipeng Chen , Wen Wang

We consider the Assouad dimension analogues of two important problems in geometric measure theory. These problems are tied together by the common theme of `passing to weak tangents'. First, we solve an analogue of Falconer's distance set…

Metric Geometry · Mathematics 2020-04-30 Jonathan M. Fraser

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…

Dynamical Systems · Mathematics 2024-03-14 Amlan Banaji , Jonathan M. Fraser

As a continuation of a recent work of the same authors (arXiv:1504.07138), in this note we study the dimension theory of diagonally homogeneous triangular planar self-affine IFS.

Dynamical Systems · Mathematics 2016-10-28 Balázs Bárány , Michał Rams , Károly Simon

We investigate the dimension theory of inhomogeneous self-affine carpets. Through the work of Olsen, Snigireva and Fraser, the dimension theory of inhomogeneous self-similar sets is now relatively well-understood, however, almost no…

Metric Geometry · Mathematics 2013-07-26 Jonathan M. Fraser

It is known that, unlike the Hausdorff dimension, the Assouad dimension of a self-similar set can exceed the similarity dimension if there are overlaps in the construction. Our main result is the following precise dichotomy for self-similar…

Classical Analysis and ODEs · Mathematics 2015-01-19 Jonathan. M. Fraser , Alexander. M. Henderson , Eric J. Olson , James C. Robinson

We study the orthogonal projections of a large class of self-affine carpets, which contains the carpets of Bedford and McMullen as special cases. Our main result is that if $\Lambda$ is such a carpet, and certain natural irrationality…

Dynamical Systems · Mathematics 2013-03-21 Andrew Ferguson , Thomas Jordan , Pablo Shmerkin

We quantify the pointwise doubling properties of self-similar measures using the notion of pointwise Assouad dimension. We show that all self-similar measures satisfying the open set condition are pointwise doubling in a set of full…

Dynamical Systems · Mathematics 2024-01-09 Roope Anttila , Ville Suomala

We introduce the notion of pseudo-cones of metric spaces as a generalization of both of the tangent cones and the asymptotic cones. We prove that the Assouad dimension of a metric space is bounded from below by that of any pseudo-cone of…

Metric Geometry · Mathematics 2020-01-17 Yoshito Ishiki

The Assouad and quasi-Assouad dimensions of a metric space provide information about the extreme local geometric nature of the set. The Assouad dimension of a set has a measure theoretic analogue, which is also known as the upper regularity…

Metric Geometry · Mathematics 2018-11-15 Kathryn Hare , Kevin Hare , Sascha Troscheit

Under mild conditions we show that the affinity dimension of a planar self-affine set is equal to the supremum of the Lyapunov dimensions of self-affine measures supported on self-affine proper subsets of the original set. These self-affine…

Dynamical Systems · Mathematics 2019-03-18 Ian D. Morris , Pablo Shmerkin

The Hausdorff dimension of general Sierpinski carpets, [4] and [20], and the generalization on Lalley-Gatzouras carpets, [10], are today well known results, the formulas being obtain via the variational principle for the dimension. We call…

Dynamical Systems · Mathematics 2022-01-31 Nuno Luzia

We construct a self-affine sponge in $\mathbb R^3$ whose dynamical dimension, i.e. the supremum of the Hausdorff dimensions of its invariant measures, is strictly less than its Hausdorff dimension. This resolves a long-standing open problem…

Dynamical Systems · Mathematics 2018-11-22 Tushar Das , David Simmons

Let $F \subseteq \mathbb{R}^2$ be a Bedford-McMullen carpet defined by multiplicatively independent exponents, and suppose that either $F$ is not a product set, or it is a product set with marginals of dimension strictly between $0$ and…

Dynamical Systems · Mathematics 2016-07-27 Amir Algom , Michael Hochman

We show that the class of quasisymmetric maps between horizontal self-affine carpets is rigid. Such maps can only exist when the dimensions of the carpets coincide, and in this case, the quasisymmetric maps are quasi-Lipschitz. We also show…

Classical Analysis and ODEs · Mathematics 2018-06-27 Antti Käenmäki , Tuomo Ojala , Eino Rossi

We prove that if $\mu$ is a self-affine measure in the plane whose defining IFS acts totally irreducibly on $\mathbb{RP}^1$ and satisfies an exponential separation condition, then its dimension is equal to its Lyapunov dimension. We also…

Dynamical Systems · Mathematics 2019-05-06 Michael Hochman , Ariel Rapaport

We obtain the Assouad dimensions of Moran sets under suitable condition. Using the homogeneous set, we also study the Assouad dimensions of Cantor-like sets.

Metric Geometry · Mathematics 2014-05-06 wen-wen Li , wen-xia Li , jun-jie Miao , li-feng Xi

In this paper we compute the multifractal analysis for local dimensions of Bernoulli measures supported on the self-affine carpets introduced by Bedford-McMullen. This extends the work of King where the multifractal analysis is computed…

Dynamical Systems · Mathematics 2009-11-05 Thomas Jordan , Michal Rams

In this paper, we study the Hausdorff and the box-counting dimensions of diagonally aligned self-affine carpets whose projections to the $x$- and $y$-axes satisfy the weak separation condition. In particular, we show that the Hausdorff…

Dynamical Systems · Mathematics 2026-05-12 Balázs Bárány , Levente David