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In this paper, we introduce the concept of the $\alpha$-fractal function and fractal approximation for a set-valued continuous map defined on a closed and bounded interval of real numbers. Also, we study some properties of such fractal…

Functional Analysis · Mathematics 2022-07-07 Megha Pandey , Tanmoy Som , Saurabh Verma

We investigate the percolation properties of a planar reinforced network model. In this model, at every time step, every vertex chooses $k \ge 1$ incident edges, whose weight is then increased by 1. The choice of this $k$-tuple occurs…

Probability · Mathematics 2024-07-18 Gideon Amir , Markus Heydenreich , Christian Hirsch

A new calculus based on fractal subsets of the real line is formulated. In this calculus, an integral of order $\alpha, 0 < \alpha \leq 1$, called $F^\alpha$-integral, is defined, which is suitable to integrate functions with fractal…

Mathematical Physics · Physics 2007-05-23 Abhay Parvate , A. D. Gangal

This work is an extension of the incomplete probability theory from the simple case of monofractals previously studied to the more general case of multifractals which can occur in the phase space without equiprobable partition.

Statistical Mechanics · Physics 2007-11-13 Qiuping A. Wang , L. Nivanen , A. El Kaabouchi , J. P. Badiali , A. Le Méhauté

We characterize the existence of certain geometric configurations in the fractal percolation limit set $A$ in terms of the almost sure dimension of $A$. Some examples of the configurations we study are: homothetic copies of finite sets,…

Probability · Mathematics 2017-03-29 Pablo Shmerkin , Ville Suomala

The notion of the abundance of fractals is critically re-examined in light of surprising data regarding the scaling range in empirical reports on fractality.

Disordered Systems and Neural Networks · Physics 2016-08-31 David Avnir , Ofer Biham , Daniel A. Lidar , Ofer Malcai

In this article we study optimization problems ruled by $\alpha$-fractional diffusion operators with volume constraints. By means of penalization techniques we prove existence of solutions. We also show that every solution is locally of…

Analysis of PDEs · Mathematics 2015-10-19 Eduardo V. Teixeira , Rafayel Teymurazyan

The system size dependence of the multifractal spectrum $f(\alpha)$ and its singularity strength $\alpha$ is investigated numerically. We focus on one-dimensional (1D) and 2D disordered systems with long-range random hopping amplitudes in…

Disordered Systems and Neural Networks · Physics 2007-05-23 E. Cuevas

We show relative to strong hypotheses that patterns of compact cardinals in the universe, where a compact cardinal is one which is either strongly compact or supercompact, can be virtually arbitrary. Specifically, we prove if V is a model…

Logic · Mathematics 2007-05-23 Arthur W. Apter

We formulate conjectures regarding percolation on planar triangulations suggested by assuming (quasi) invariance under coarse conformal uniformization.

Probability · Mathematics 2015-12-22 Itai Benjamini

In this research paper, we provide a concise overview of fractal calculus applied to fractal sets. We introduce and solve a second $\alpha$-order fractal differential equation with constant coefficients across different scenarios. We…

General Mathematics · Mathematics 2024-04-02 Alireza Khalili Golmankhaneh , Donatella Bongiorno

We show that fractional decay may be observable in experiments using quantum dots and photonic crystals with parameters that are currently achievable. We focus on the case of inverse opal photonic crystals and locate the position in the…

Quantum Physics · Physics 2009-11-13 Philip Kristensen , A. Femius Koenderink , Peter Lodahl , Bjarne Tromborg , Jesper Mork

The site percolation on the triangular lattice stands out as one of the few exactly solved statistical systems. By initially configuring critical percolation clusters of this model and randomly reassigning the color of each percolation…

Statistical Mechanics · Physics 2024-09-20 Ming Li , Youjin Deng

We prove an explicit formula for the dependence of the exponent in the fractal uncertainty principle of Bourgain-Dyatlov on the dimension and on the regularity constant for the regular set. In particular, this implies an explicit essential…

Classical Analysis and ODEs · Mathematics 2018-06-06 Long Jin , Ruixiang Zhang

Uniform metastable convergence is a weak form of uniform convergence for a family of sequences. In this paper we explore the way that metastable convergence stratifies into a family of notions indexed by countable ordinals. We give two…

Logic · Mathematics 2017-10-03 Henry Towsner

Let $\mathcal{A}$ be a separable nuclear C*-algebra, and $\mathcal{B}$ be a nonunital separable simple $\mathcal{Z}$-stable C*-algebra. Continuing the work from Gabe-Lin-Ng, we classify all essential extensions, with large complement, of…

Operator Algebras · Mathematics 2026-02-25 Ping Wong Ng , Cangyuan Wang

This paper introduces the fractal interpolation problem defined over domains with a nonlinear partition. This setting generalizes known methodologies regarding fractal functions and provides a new holistic approach to fractal interpolation.…

Metric Geometry · Mathematics 2022-08-31 Peter R. Massopust

We numerically simulate the uniform athermal shearing of bidisperse, frictionless, two dimensional spherocylinders and three dimensional prolate ellipsoids. We focus on the orientational ordering of particles as an asphericity parameter…

Soft Condensed Matter · Physics 2019-05-22 Theodore Marschall , Yann-Edwin Keta , Peter Olsson , S. Teitel

A consecutive formalism and analysis of exactly solvable radial reflectionless potentials with barriers, which in the spatial semiaxis of radial coordinate $r$ have one hole and one barrier, after which they fall down monotonously to zero…

Nuclear Theory · Physics 2007-05-23 Sergei P. Maydanyuk

Anomalous short- and long-time self-diffusion of non-overlapping fractal particles on a percolation cluster with spreading dimension $1.67(2)$ is studied by dynamic Monte Carlo simulations. As reported in Phys. Rev. Lett. 115, 097801…

Computational Physics · Physics 2020-10-08 Marco Heinen
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