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We consider several different models for generating random fractals including random self-similar sets, random self-affine carpets, and fractal percolation. In each setting we compute either the \emph{almost sure} or the \emph{Baire…

Metric Geometry · Mathematics 2018-04-26 Jonathan M. Fraser , Jun Jie Miao , Sascha Troscheit

This is the third one in a series of papers classifying the factorizations of almost simple groups with nonsolvable factors. In this paper we deal with orthogonal groups in odd dimension.

Group Theory · Mathematics 2021-08-03 Cai Heng Li , Lei Wang , Binzhou Xia

We study the fractal dimension of a class of solenoidal attractors in dimensions greater or equal than 3, proving that if the contraction is sufficiently strong, the expansion is close to conformal and the attractor satisfy a geometrical…

Dynamical Systems · Mathematics 2022-08-16 Ricardo Bortolotti , Eberson Ferreira da Silva

We prove bounds for the almost sure value of the Hausdorff dimension of the limsup set of a sequence of balls in $\mathbf{R}^d$ whose centres are independent, identically distributed random variables. The formulas obtained involve the rate…

Classical Analysis and ODEs · Mathematics 2018-08-01 Fredrik Ekström , Tomas Persson

This article analysis differential equations which represents damped and fractional oscillators. First, it is shown that prior to using physical quantities in fractional calculus, it is imperative that they are turned dimensionless.…

Suppose $X$ is a compact connected metric space and $f: X \to X$ is a metric coarse expanding conformal map in the sense of Ha\"issinsky-Pilgrim. We show that if $X$ contains a homeomorphic copy of the letter "Y", then the Hausdorff…

Metric Geometry · Mathematics 2022-09-22 Insung Park , Angela Wu

By applying a 2014 result on the distribution of full cylinders, we give a proof of the useful folklore: for any $\beta>1$, the Hausdorff dimension of an arbitrary set in the shift space $S_\beta$ is equal to the Hausdorff dimension of its…

Dynamical Systems · Mathematics 2021-03-25 Yao-Qiang Li

A macroscopic characterization of fractals showing up a structural transition from dense to multibranched growth is made using optical diffraction theory. Such fractals are generated via the numerical solution of the 2D Poisson and…

Condensed Matter · Physics 2009-10-22 F. Perez-Rodriguez , Wei Wang , E. Canessa

We use nonstandard techniques, in the sense of Abraham Robinson, to give the exact Hausdorff outer measure.

Classical Analysis and ODEs · Mathematics 2019-12-03 Mee Seong Im

An alternate definition of the box-counting dimension is proposed, to provide a better approximation for fractals involving rotation such as the 'Bradley Spiral' structure. A curve fitting comparison of this definition with the box-counting…

Dynamical Systems · Mathematics 2016-06-15 Tazeen Athar , Nayab Khalid , Shams Ul Islam

This work proposes a conformable fractional predictor-corrector algorithm for solving conformable fractional differential equations. Fractional calculus is finding applications in various scientific fields, but existing numerical methods…

Numerical Analysis · Mathematics 2024-06-25 Mohamed Echchehira , Youness Assebbane , Mustapha Atraoui , Mohamed Bouaouid

Fractional calculus is an effective tool in incorporating the effects of non-locality and memory into physical models. In this regard, successful applications exist rang- ing from signal processing to anomalous diffusion and quantum…

General Physics · Physics 2014-08-26 S. S. Bayin , J. P. Krisch

We construct first a class of Moran fractals in R^d with countably many generators and non-stationary contraction rates; at each step n, the contractions depend on n-truncated sequences, and are related to asymptotic letter frequencies. In…

Dynamical Systems · Mathematics 2016-06-13 Eugen Mihailescu , Mrinal Kanti Roychowdhury

We give explicit bounds for the Hausdorff dimension of the unique invariant measure of $C^3$ multicritical circle maps without periodic points. These bounds depend only on the arithmetic properties of the rotation number.

Dynamical Systems · Mathematics 2023-07-19 Frank Trujillo

By considering a Moran-type construction of fractals on $[0,1]$, we show that for any $0\le s\le 1$, there exists some Moran fractal set, which is perfect, with Hausdorff dimension $s$ whose Fourier dimension is zero and it contains…

Classical Analysis and ODEs · Mathematics 2017-07-21 Chun-Kit Lai

In this paper we study the radial and orthogonal projections and the distance sets of the random Cantor sets $E\subset \mathbb{R}^2 $ which are called Mandelbrot percolation or percolation fractals. We prove that the following assertion…

Dynamical Systems · Mathematics 2013-06-18 Michal Rams , Károly Simon

In the path integral formulation of quantum mechanics, Feynman and Hibbs noted that the trajectory of a particle is continuous but nowhere differentiable. We extend this result to the quantum mechanical path of a relativistic string and…

High Energy Physics - Theory · Physics 2009-10-30 S. Ansoldi , A. Aurilia , E. Spallucci

This letter establishes a procedure which can determine an algebra of exotic particles obeying fractional statistics and living in two-dimensional space using a non-commuting coordinates.

High Energy Physics - Theory · Physics 2008-11-26 Jamila Douari

In this paper, we study the Hausdorff dimension of the generalized intrinsic level set with respect to the given ergodic meausre in a class of non-uniformly hyperbolic interval maps with finitely many branches.

Dynamical Systems · Mathematics 2021-12-22 Guan-Zhong Ma , Wen-Qiang Shen , Xiao Yao

Fractons are anyons classified into equivalence classes and they obey a specific fractal statistics. The equivalence classes are labeled by a fractal parameter or Hausdorff dimension $h$. We consider this approach in the context of the…

High Energy Physics - Theory · Physics 2008-11-26 Wellington da Cruz