Exact Hausdorff dimension of some sofic self-affine fractals

Fuente: arXiv
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Main Author: Alibabaei, Nima
Format: Preprint
Published: 2024
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author Alibabaei, Nima
author_facet Alibabaei, Nima
contents Previous work has shown that the Hausdorff dimension of sofic affine-invariant sets is expressed as a limit involving intricate matrix products. This limit has typically been regarded as incalculable. However, in several highly non-trivial cases, we demonstrate that the dimension can in fact be calculated explicitly. Specifically, the dimension is expressed as the solution to an infinite-degree equation with explicit coefficients, which also corresponds to the spectral radius of a certain linear operator. Our result provides the first non-trivial calculation of the exact Hausdorff dimension of sofic sets in $\mathbb{R}^3$. This is achieved by developing a new technique inspired by the work of Kenyon and Peres (1998).
format Preprint
id arxiv_https___arxiv_org_abs_2412_05805
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Exact Hausdorff dimension of some sofic self-affine fractals
Alibabaei, Nima
Dynamical Systems
28A80, 28D20, 37B40
Previous work has shown that the Hausdorff dimension of sofic affine-invariant sets is expressed as a limit involving intricate matrix products. This limit has typically been regarded as incalculable. However, in several highly non-trivial cases, we demonstrate that the dimension can in fact be calculated explicitly. Specifically, the dimension is expressed as the solution to an infinite-degree equation with explicit coefficients, which also corresponds to the spectral radius of a certain linear operator. Our result provides the first non-trivial calculation of the exact Hausdorff dimension of sofic sets in $\mathbb{R}^3$. This is achieved by developing a new technique inspired by the work of Kenyon and Peres (1998).
title Exact Hausdorff dimension of some sofic self-affine fractals
topic Dynamical Systems
28A80, 28D20, 37B40
url https://arxiv.org/abs/2412.05805