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Related papers: Full measure universality for Cantor Sets

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Consider a finite Blaschke product $f$ with $f(0) = 0$ which is not a rotation and denote by $f^n$ its $n$-th iterate. Given a sequence $\{a_n\}$ of complex numbers, consider the series $F(z) = \sum_n a_n f^n(z).$ We show that for any $w…

Complex Variables · Mathematics 2024-03-21 Spyridon Kakaroumpas , Odí Soler i Gibert

We set up a descriptive set-theoretic framework to study Lipschitz-free spaces and use the reduction argument of Bossard to prove several results. We prove two universality results: if a separable Banach space is isomorphically universal…

Functional Analysis · Mathematics 2026-02-24 Richard J. Smith

Suppose $\Lambda$ is a discrete infinite set of nonnegative real numbers. We say that $ {\Lambda}$ is of type 1 if the series $s(x)=\sum_{\lambda\in\Lambda}f(x+\lambda)$ satisfies a zero-one law. This means that for any non-negative…

Classical Analysis and ODEs · Mathematics 2018-01-31 Zoltán Buczolich , Balázs Maga , Gáspár Vértesy

We consider one dimensional maps with several neutral fixed points that do not admit any physical measures. We show that there is simplex of measures so that every measure in this simplex has a basin which has full Hausdorff dimension.

Dynamical Systems · Mathematics 2025-09-12 Douglas Coates , Katrin Gelfert

Let $C_\la$ and $C_\ga$ be two affine Cantor sets in $\mathbb{R}$ with similarity dimensions $d_\la$ and $d_\ga$, respectively. We define an analog of the Bandt-Graf condition for self-similar systems and use it to give necessary and…

Classical Analysis and ODEs · Mathematics 2015-06-26 Kemal Ilgar Eroglu

We study the Fourier transforms $\widehat{\mu}(\xi)$ of non-atomic Gibbs measures $\mu$ for uniformly expanding maps $T$ of bounded distortions on $[0,1]$ or Cantor sets with strong separation. When $T$ is totally non-linear, then…

Dynamical Systems · Mathematics 2022-02-17 Tuomas Sahlsten , Connor Stevens

We consider the question which compact metric spaces can be obtained as a Lipschitz image of the middle third Cantor set, or more generally, as a Lipschitz image of a subset of a given compact metric space. In the general case we prove that…

Classical Analysis and ODEs · Mathematics 2024-04-10 Richárd Balka , Tamás Keleti

For a compact set $E \subset \mathbb{C}$ containing more than two points, we study asymptotic behavior of normalized zero counting measures $\{\mu_k \}$ of the derivatives of Faber polynomials associated with $E$. For example if $E$ has…

Complex Variables · Mathematics 2014-12-15 Byung-Geun Oh

It is well-known that there is a Sobolev homeomorphism $f\in W^{1,p}([-1,1]^n,[-1,1]^n)$ for any $p<n$ which maps a set $C$ of zero Lebesgue $n$-dimensional measure onto the set of positive measure. We study the size of this critical set…

Functional Analysis · Mathematics 2025-10-14 Anna Doležalová , Marika Hrubešová , Tomáš Roskovec

We study generalizations of Reifenberg's Theorem for measures in $\mathbb R^n$ under assumptions on the Jones' $\beta$-numbers, which appropriately measure how close the support is to being contained in a subspace. Our main results, which…

Classical Analysis and ODEs · Mathematics 2025-03-25 Nick Edelen , Aaron Naber , Daniele Valtorta

We show that several portions of the complement $M\setminus L$ of the Lagrange spectrum $L$ in the Markov spectrum $M$ can be seen as subsets of arithmetic sums of Cantor sets with controlled Hausdorff dimensions. In particular, we prove…

Dynamical Systems · Mathematics 2019-10-04 Carlos Matheus , Carlos Gustavo Moreira

We obtain a complete description for a probability measure to be doubling on an arbitrarily given uniform Cantor set. The question of which doubling measures on such a Cantor set can be extended to a doubling measure on [0; 1] is also…

Metric Geometry · Mathematics 2015-06-18 Chun Wei , Shengyou Wen , Zhixiong Wen

Let $K$ be the attractor of a linear iterated function system (IFS) $S_j(x)=\rho_jx+b_j,$ $j=1,\cdots,m$, on the real line satisfying the generalized finite type condition (whose invariant open set $\mathcal{O}$ is an interval) with an…

Classical Analysis and ODEs · Mathematics 2013-08-20 Hua Qiu

We give a complete proof of the expression of capacities of a measure in terms of its Fourier transform.

Metric Geometry · Mathematics 2014-04-29 Mukeru Safari

In the present paper we prove that for any open connected set $\Omega\subset\mathbb{R}^{n+1}$, $n\geq 1$, and any $E\subset \partial \Omega$ with $\mathcal{H}^n(E)<\infty$, absolute continuity of the harmonic measure $\omega$ with respect…

Classical Analysis and ODEs · Mathematics 2018-10-10 Jonas Azzam , Steve Hofmann , José María Martell , Svitlana Mayboroda , Mihalis Mourgoglou , Xavier Tolsa , Alexander Volberg

We study lower and upper bounds of the Hausdorff dimension for sets which are wiggly at scales of positive density. The main technical ingredient is a construction, for every continuum K, of a Borel probabilistic measure \mu with the…

Dynamical Systems · Mathematics 2012-03-30 Jacek Graczyk , Peter W. Jones , Nicolae Mihalache

In 1994, John Cobb asked: given $N>m>k>0$, does there exist a Cantor set in $\mathbb R^N$ such that each of its projections into $m$-planes is exactly $k$-dimensional? Such sets were described for $(N,m,k)=(2,1,1)$ by L.Antoine (1924) and…

Geometric Topology · Mathematics 2022-12-07 Olga Frolkina

The Hausdorff-Alexandroff Theorem states that any compact metric space is the continuous image of Cantor's ternary set $C$. It is well known that there are compact Hausdorff spaces of cardinality equal to that of $C$ that are not continuous…

Dynamical Systems · Mathematics 2017-10-24 Fabian Dreher , Tony Samuel

The framework of a new scale invariant analysis on a Cantor set $C\subset $ $% I=[0,1] $, presented originally in {\it S. Raut and D. P. Datta, Fractals, 17, 45-52, (2009)}, is clarified and extended further. For an arbitrarily small…

General Mathematics · Mathematics 2010-01-12 Santanu Raut , Dhurjati Prasad Datta

Let $(X, d)$ be a compact metric space, and let $Q \subset X$ be countable. Given functions $R: Q \to \mathbb{R}^+$ and $\phi: \mathbb{R}^+ \to \mathbb{R}^+$, we consider the set $E(Q, R, \phi)$ of points $x \in X$ that ``hit'' the…

Number Theory · Mathematics 2026-02-26 Bo Tan , Chen Tian , Baowei Wang , Jun Wu