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We study sets of local dimensions for self-similar measures in $\mathbb{R}$ satisfying the finite neighbour condition, which is formally stronger than the weak separation condition but satisfied in all known examples. Under a mild technical…

Dynamical Systems · Mathematics 2022-09-07 Kathryn E. Hare , Alex Rutar

We study the multifractal analysis of a class of equicontractive, self-similar measures of finite type, whose support is an interval. Finite type is a property weaker than the open set condition, but stronger than the weak open set…

Dynamical Systems · Mathematics 2015-04-03 Kathryn E. Hare , Kevin G. Hare , Kevin R. Matthews

We study the multifractal analysis of self-similar measures arising from random homogeneous iterated function systems. Under the assumption of the uniform strong separation condition, we see that this analysis parallels that of the…

Dynamical Systems · Mathematics 2019-12-23 Kathryn E. Hare , Kevin G. Hare , Sascha Troscheit

We study self-similar measures in $\mathbb{R}$ satisfying the weak separation condition along with weak technical assumptions which are satisfied in all known examples. For such a measure $\mu$, we show that there is a finite set of concave…

Dynamical Systems · Mathematics 2021-04-20 Alex Rutar

Consider a sequence of linear contractions $S_{j}(x)=\varrho x+d_{j}$ and probabilities $p_{j}>0$ with $\sum p_{j}=1$. We are interested in the self-similar measure $\mu =\sum p_{j}\mu \circ S_{j}^{-1}$, of finite type. In this paper we…

Dynamical Systems · Mathematics 2016-03-08 Kathryn E. Hare , Kevin G. Hare , Michael Ka Shing Ng

The structure of the set of local dimensions of a self-similar measure has been studied by numerous mathematicians, initially for measures that satisfy the open set condition and, more recently, for measures on $\mathbb{R}$ that are of…

Dynamical Systems · Mathematics 2016-07-14 Kathryn E. Hare , Kevin G. Hare , Kevin R. Matthews

Let $\mu$ be a self-similar measure generated by iterated function system of four maps of equal contraction ratio $0<\rho<1$. We study when $\mu$ is a spectral measure which means that it admits an exponential orthonormal basis $\{e^{2\pi i…

Classical Analysis and ODEs · Mathematics 2022-09-14 Li-Xiang An , Xinggang He , Chun-Kit Lai

In this paper we prove disintegration results for self-conformal measures and affinely irreducible self-similar measures. The measures appearing in the disintegration resemble self-conformal/self-similar measures for iterated function…

Dynamical Systems · Mathematics 2026-03-11 Simon Baker

We show that any equicontractive, self-similar measure arising from the IFS of contractions $(S_{j})$, with self-similar set $[0,1]$, admits an isolated point in its set of local dimensions provided the images of $S_{j}(0,1)$ (suitably)…

Classical Analysis and ODEs · Mathematics 2018-07-24 Kathryn E. Hare , Kevin G. Hare

It is known that the heuristic principle, referred to as the multifractal formalism, need not hold for self-similar measures with overlap, such as the $3$-fold convolution of the Cantor measure and certain Bernoulli convolutions. In this…

Classical Analysis and ODEs · Mathematics 2019-09-20 Kathryn E. Hare , Kevin G. Hare , Wanchun Shen

For any self-similar measure $\mu$ in $\mathbb{R}$, we show that the distribution of $\mu$ is controlled by products of non-negative matrices governed by a finite or countable graph depending only on the IFS. This generalizes the net…

Dynamical Systems · Mathematics 2023-05-11 Alex Rutar

The local dimension spectrum provides a framework for quantifying the fractal properties of a measure, and it is well understood for non-overlapping self-similar measures. In this article, we study the local dimension spectrum for dominated…

Dynamical Systems · Mathematics 2026-01-21 Alex Batsis , Antti Käenmäki , Tom Kempton

Let $\mu$ be a self-similar measure generated by an IFS $\Phi=\{\phi_i\}_{i=1}^\ell$ of similarities on $\mathbb R^d$ ($d\ge 1$). When $\Phi$ is dimensional regular (see Definition~1.1), we give an explicit formula for the $L^q$-spectrum…

Dynamical Systems · Mathematics 2020-05-19 Julien Barral , De-Jun Feng

We extend the study of the multifractal analysis of the class of equicontractive self-similar measures of finite type to the non-equicontractive setting. Although stronger than the weak separation condition, the finite type property…

Dynamical Systems · Mathematics 2019-09-25 Kathryn E. Hare , Kevin G. Hare , Grant Simms

We study the local dimensions and local multifractal properties of measures on doubling metric spaces. Our aim is twofold. On one hand, we show that there are plenty of multifractal type measures in all metric spaces which satisfy only mild…

Classical Analysis and ODEs · Mathematics 2017-02-03 Antti Käenmäki , Tapio Rajala , Ville Suomala

A circle, centered at the origin and with radius chosen so that it has non-empty intersection with the integer lattice $\mathbb{Z}^{2}$, gives rise to a probability measure on the unit circle in a natural way. Such measures, and their weak…

Number Theory · Mathematics 2015-01-12 Par Kurlberg , Igor Wigman

We introduce two new concepts, local homogeneity and local L^q-spectrum, both of which are tools that can be used in studying the local structure of measures. The main emphasis is given to the examination of local dimensions of measures in…

Classical Analysis and ODEs · Mathematics 2017-02-03 Antti Käenmäki , Tapio Rajala , Ville Suomala

We study the pointwise dimension for a new class of projection measures on arbitrary fractal limit sets without separation conditions. We prove that the pointwise dimension exists a.e. for this class of measures associated to equilibrium…

Dynamical Systems · Mathematics 2019-08-28 Eugen Mihailescu

A classical theorem of Hutchinson asserts that if an iterated function system acts on $\mathbb{R}^d$ by similitudes and satisfies the open set condition then it admits a unique self-similar measure with Hausdorff dimension equal to the…

Dynamical Systems · Mathematics 2019-09-11 Ian D. Morris , Cagri Sert

We show that in many parametrized families of self-similar measures, their projections, and their convolutions, the set of parameters for which the measure fails to be absolutely continuous is very small - of co-dimension at least one in…

Dynamical Systems · Mathematics 2016-07-29 Pablo Shmerkin , Boris Solomyak
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