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In dynamical systems, basins of attraction connect a given set of initial conditions in phase space to their asymptotic states. The basin entropy and related tools quantify the unpredictability in the final state of a system when there is…

混沌动力学 · 物理学 2022-01-24 Andreu Puy , Alvar Daza , Alexandre Wagemakers , Miguel A. F. Sanjuán

We study the porosity properties of fractal percolation sets $E\subset\mathbb{R}^d$. Among other things, for all $0<\varepsilon<\tfrac12$, we obtain dimension bounds for the set of exceptional points where the upper porosity of $E$ is less…

概率论 · 数学 2020-10-02 Changhao Chen , Tuomo Ojala , Eino Rossi , Ville Suomala

Stability assessment methods for dynamical systems have recently been complemented by basin stability and derived measures, i.e. probabilistic statements whether systems remain in a basin of attraction given a distribution of perturbations.…

混沌动力学 · 物理学 2017-03-08 Paul Schultz , Peter J. Menck , Jobst Heitzig , Jürgen Kurths

Hausdorff dimensions of level sets of generic continuous functions defined on fractals can give information about the "thickness/narrow cross-sections'' of a "network" corresponding to a fractal set, $F$. This lead to the definition of the…

经典分析与常微分方程 · 数学 2022-10-05 Zoltán Buczolich , Balázs Maga , Gáspár Vértesy

This paper delves into the world of fractal calculus, investigating its implications for fractal sets. It introduces the Fractal Schr\"{o}dinger Equation and provides insights into its consequences. The study presents a General Solution for…

量子物理 · 物理学 2023-10-27 Alireza Khalili Golmankhaneh , Stergios Pellis , Massimiliano Zingales

The purpose of this paper is to study the fractal phenomena in large data sets and the associated questions of dimension reduction. We examine situations where the classical Principal Component Analysis is not effective in identifying the…

The present paper investigates the binary system of quasars in the framework of the Circular Restricted Three-Body Problem. The parametric evolution of libration points, the geometry of zero-velocity curves are one of the crucial aspects of…

混沌动力学 · 物理学 2020-11-18 Vinay Kumar , Pankaj Sharma , Rajiv Aggarwal , Bhavneet Kaur

Noisy scattering dynamics in the randomly driven H\'enon-Heiles system is investigated in the range of initial energies where the motion is unbounded. In this paper we study, with the help of the exit basins and the escape time…

统计力学 · 物理学 2023-01-12 Mattia Coccolo , Jesús M. Seoane , Miguel A. F. Sanjuán

Hausdorff dimensions of level sets of generic continuous functions defined on fractals were considered in two papers by R. Balka, Z. Buczolich and M. Elekes. In those papers the topological Hausdorff dimension of fractals was defined. In…

经典分析与常微分方程 · 数学 2022-08-26 Zoltán Buczolich , Balázs Maga , Gáspár Vértesy

The fractal dimension of a liquid column is a crucial parameter in several models describing the main features of the primary break-up occurring at the interface of a liquid phase surrounded by the gas-flow. In this work, the deformation of…

流体动力学 · 物理学 2009-11-11 Paolo Oresta , Arturo De Risi , Teresa Donateo , Domenico Laforgia

We obtain an analytical solution for the pressure-transient behavior of a vertically hydraulic fractured well in a heterogeneous reservoir. The heterogeneity of the reservoir is modeled by using the concept of fractal geometry. Such…

流体动力学 · 物理学 2015-03-17 Kambiz Razminia , Abolhassan Razminia , Delfim F. M. Torres

We propose a set of constraints on the ground-state wavefunctions of fracton phases, which provide a possible generalization of the string-net equations used to characterize topological orders in two spatial dimensions. Our constraint…

强关联电子 · 物理学 2020-04-30 Nathanan Tantivasadakarn , Sagar Vijay

Fractal geometry, defined by self-similar patterns across scales, is crucial for understanding natural structures. This work addresses the fractal inverse problem, which involves extracting fractal codes from images to explain these…

图形学 · 计算机科学 2025-02-25 Adarsh Djeacoumar , Felix Mujkanovic , Hans-Peter Seidel , Thomas Leimkühler

Chaotic scattering is an important topic in nonlinear dynamics and chaos with applications in several fields in physics and engineering. The study of this phenomenon in relativistic systems has receivedlittle attention as compared to the…

混沌动力学 · 物理学 2018-04-25 Juan D. Bernal , Jesús M. Seoane , Miguel A. F. Sanjuán

The escape mechanism of the four hill potential is explored. A thorough numerical investigation takes place in several types of two-dimensional planes and also in a three-dimensional subspace of the entire four-dimensional phase space in…

混沌动力学 · 物理学 2017-09-28 Euaggelos E. Zotos

It is presented the general properties of N-dimensional multi-component or many-particle systems exhibiting self-similar hierarchical structure. Assuming there exists an optimal coarse-graining scale at which the quality and diversity of…

适应与自组织系统 · 物理学 2014-04-22 Marcos E. Gaudiano

In the present work, the Newton-Raphson basins of convergence, corresponding to the coplanar libration points (which act as numerical attractors), are unveiled in the axisymmetric five-body problem, where convex configuration is considered.…

混沌动力学 · 物理学 2019-04-25 Md Sanam Suraj , Prachi Sachan , Euaggelos E. Zotos , Amit Mittal , Rajiv Aggarwal

Basins generated by a noninvertible mapping formed by two symmetrically coupled logistic maps are studied when the only parameter \lambda of the system is modified. Complex patterns on the plane are visualised as a consequence of basins'…

混沌动力学 · 物理学 2015-06-26 Ricardo Lopez-Ruiz , Daniele Fournier-Prunaret

Neural network models have recently demonstrated impressive prediction performance in complex systems where chaos and unpredictability appear. In spite of the research efforts carried out on predicting future trajectories or improving their…

混沌动力学 · 物理学 2025-01-30 David Valle , Alexandre Wagemakers , Alvar Daza , Miguel A. F. Sanjuán

Fractals are geometric shapes that can display complex and self-similar patterns found in nature (e.g., clouds and plants). Recent works in visual recognition have leveraged this property to create random fractal images for model…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Cheng-Hao Tu , Hong-You Chen , David Carlyn , Wei-Lun Chao