Variable-order porous media equations: Application on modeling the S&P500 and Bitcoin price return

Y Tang, F Gharari, K Arias-Calluari… - Physical Review E, 2024 - APS
This article reveals a specific category of solutions for the 1+ 1 variable order (VO) nonlinear
fractional Fokker-Planck equations. These solutions are formulated using VO q-Gaussian …

A family of nonlinear diffusion equations related to the q-error function

AR Plastino, C Tsallis, RS Wedemann - Physica A: Statistical Mechanics …, 2024 - Elsevier
We investigate a bi-parametric family of nonlinear diffusion equations that includes, as
special members, the power-law nonlinear diffusion equation, and an evolution equation …

A novel S-box design based on quantum tent maps and fractional stochastic models with an application in image encryption

N Hematpour, F Gharari, B Ors, ME Yalcin - Soft Computing, 2024 - Springer
In this article, we propose an approach to create a high-quality quantum tent map by utilizing
the generalized quantum dot system. Our objective is to determine if its chaos surpasses that …

Stylized Facts of High-Frequency Bitcoin Time Series

Y Tang, K Arias-Calluari, MS Harré… - arXiv preprint arXiv …, 2024 - arxiv.org
This paper analyses the high-frequency intraday Bitcoin dataset from 2019 to 2022. During
this time frame, the Bitcoin market index exhibited two distinct periods characterized by …

[PDF][PDF] Fractional newton explicit group method for time-fractional nonlinear porous medium equations

JVL Chew, A Sunarto, J Sulaiman… - Progr. Fract. Differ. Appl …, 2024 - researchgate.net
This paper presents a fractional Newton explicit group method to solve time-fractional
nonlinear porous medium equations. The presented method utilizes implicit finite difference …

Statistical dynamics of driven systems of confined interacting particles in the overdamped-motion regime

S Curilef, AR Plastino, RS Wedemann - Chaos: An Interdisciplinary …, 2022 - pubs.aip.org
Systems consisting of confined, interacting particles doing overdamped motion admit an
effective description in terms of nonlinear Fokker–Planck equations. The behavior of these …

Sandpiles subjected to sinusoidal drive

J Cheraghalizadeh, MA Seifi MirJafarlou, MN Najafi - Physical Review E, 2023 - APS
This paper considers a sandpile model subjected to a sinusoidal external drive with the
period T. We develop a theoretical model for the Green's function in a large T limit, which …

Closed-form solutions for the Salpeter equation

F Alonso-Marroquin, Y Tang, F Gharari… - arXiv preprint arXiv …, 2024 - arxiv.org
We propose integral representations and analytical solutions for the propagator of the $1+
1$ dimensional Salpeter Hamiltonian, describing a relativistic quantum particle with no spin …

Modified Newton successive over-relaxation for solving Caputo fractional porous medium equations

JVL Chew, A Sunarto, J Sulaiman - … Trends in Fractional Calculus and Its …, 2024 - Elsevier
Time-fractional porous medium equation is a fractional differential equation that exists in the
nonlinear diffusion of matter subjects to a porous medium setting. Exact solutions to such …