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Related papers: Estimating Hausdorff measure for Denjoy maps

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We are going to widen the scope of the previously defined Hausdorff-integral in two ways. First, in the sense, that we develop the theory of the integral on some naturally generalized measure spaces. Second, we extend it to functions taking…

Classical Analysis and ODEs · Mathematics 2024-03-27 Attila Losonczi

S. Smirnov proved recently that the Hausdorff dimension of any K-quasicircle is at most 1+k^2, where k=(K-1)/(K+1). In this paper we show that if $\Gamma$ is such a quasicircle, then $H^{1+k^2}(B(x,r)\cap \Gamma)\leq C(k) r^{1+k^2}$ for all…

Complex Variables · Mathematics 2012-01-16 István Prause , Xavier Tolsa , Ignacio Uriarte-Tuero

In this paper, we investigate the Hausdorff measure of shrinking target sets in $\beta$-dynamical systems. These sets are dynamically defined in analogy to the classical theory of weighted and multiplicative approximation. While the…

Dynamical Systems · Mathematics 2024-11-26 Yubin He

In this short note, we show that, in any given metric space, every Lipschitz open-map image of every subset of a given metric space whose boundary is Hausdorff-null is Hausdorff-measurable with respect to the same dimension. The main…

General Mathematics · Mathematics 2020-06-08 Yu-Lin Chou

We prove that any minimal $2$-torus homeomorphism which is isotopic to the identity and whose rotation set is not just a point exhibits uniformly bounded rotational deviations on the perpendicular direction to the rotation set. As a…

Dynamical Systems · Mathematics 2020-02-11 Alejandro Kocsard

A closed interval and circle are the only smooth Julia sets in polynomial dynamics. D. Ruelle proved that the Hausdorff dimension of unicritical Julia sets close to the circle depends analytically on the parameter. Near the tip of the…

Dynamical Systems · Mathematics 2022-10-27 Neil Dobbs , Jacek Graczyk , Nicolae Mihalache

We establish a sharp reciprocity inequality for modulus in compact metric spaces $X$ with finite Hausdorff measure. In particular, when $X$ is also homeomorphic to a planar rectangle, our result answers a question of K. Rajala and M.…

Metric Geometry · Mathematics 2021-02-08 Sylvester Eriksson-Bique , Pietro Poggi-Corradini

We extend the well-known Denjoy-Ahlfors theorem on the number of different asymptotic tracts of holomorphic functions to subharmonic functions on arbitrary Riemannian manifolds. We obtain some new versions of the Liouville theorem for…

Differential Geometry · Mathematics 2018-04-20 Vladimir M. Miklyukov , Vladimir G. Tkachev

We aim at estimating the fundamental matrix in two views from five correspondences of rotation invariant features obtained by e.g.\ the SIFT detector. The proposed minimal solver first estimates a homography from three correspondences…

Computer Vision and Pattern Recognition · Computer Science 2018-03-02 Daniel Barath

This paper investigates quantitative estimates in the homogenization of second-order elliptic systems with periodic coefficients that oscillate on multiple separated scales. We establish large-scale interior and boundary Lipschitz estimates…

Analysis of PDEs · Mathematics 2019-09-23 Weisheng Niu , Zhongwei Shen , Yao Xu

We study the set of irregular points for topologically mixing subshifts of finite type. It is well known that despite the irregular set having zero measure for every invariant measure, it has full topological entropy and full Hausdorff…

Dynamical Systems · Mathematics 2025-03-14 Sebastian Burgos

We compute the Hausdorff dimension of sets of very well approximable vectors on rational quadrics. We use ubiquitous systems and the geometry of locally symmetric spaces. As a byproduct we obtain the Hausdorff dimension of the set of rays…

Group Theory · Mathematics 2007-05-23 Cornelia Drutu

Two objects may be close in the Hausdorff metric, yet have very different geometric and topological properties. We examine other methods of comparing digital images such that objects close in each of these measures have some similar…

Computational Geometry · Computer Science 2021-09-27 Laurence Boxer

We prove that if d is an integer number bigger than 1 and f_1,...,f_d are commuting circle diffeomorphisms respectively of class C^(1+\tau_k), where \tau_1 + ... + \tau_k > 1, then these maps are simultaneously conjugate to rotations…

Dynamical Systems · Mathematics 2007-05-23 Victor Kleptsyn , Andres Navas

Rotation vectors, as defined for homeomorphisms of the torus that are isotopic to the identity, are generalized to such homeomorphisms of any complete Riemannian manifold with non-positive sectional curvature. These generalized rotation…

Dynamical Systems · Mathematics 2011-09-13 Pablo Lessa

The classical Besicovitch-Federer projection theorem implies that the d-dimensional Hausdorff measure of a set in Euclidean space with non-negligible d-unrectifiable part will strictly decrease under orthogonal projection onto almost every…

Functional Analysis · Mathematics 2017-10-11 Harrison Pugh

Let $M$ be a compact manifold of dimension at least 2. If $M$ admits a minimal homeomorphism then $M$ admits a minimal noninvertible map.

Dynamical Systems · Mathematics 2020-05-26 J. P. Boronski , G. Kozlowski

This paper is a survey devoted to the study of probability and infinite ergodic invariant measures for aperiodic homeomorphisms of a Cantor set. We focus mostly on the cases when a homeomorphism has either a unique ergodic invariant measure…

Dynamical Systems · Mathematics 2019-07-03 S. Bezuglyi , O. Karpel

We outline an efficient method for the reconstruction of a probability density function from the knowledge of its infinite sequence of ordinary moments. The approximate density is obtained resorting to maximum entropy technique, under the…

Data Analysis, Statistics and Probability · Physics 2007-05-23 Pierluigi Novi Inverardi , Alberto Petri , Giorgio Pontuale , Aldo Tagliani

Basic properties of Hausdorff content, dimension, and measure of subsets of metric spaces are discussed, especially in connection with Lipschitz mappings and topological dimension.

Classical Analysis and ODEs · Mathematics 2010-08-17 Stephen Semmes