Explicit Chebyshev–Galerkin scheme for the time-fractional diffusion equation.

M Moustafa, YH Youssri… - International Journal of …, 2024 - search.ebscohost.com
The time-fractional diffusion equation is applied to a wide range of practical applications. We
suggest using a potent spectral approach to solve this equation. These techniques' main …

Romanovski-Jacobi spectral schemes for high-order differential equations

YH Youssri, MA Zaky, RM Hafez - Applied Numerical Mathematics, 2024 - Elsevier
We develop direct solution techniques for solving high-order differential equations with
constant coefficients using the spectral tau method. The spatial approximation is based on …

Chebyshev Petrov-Galerkin procedure for the time-fractional heat equation with nonlocal conditions

YH Youssri, MI Ismail, AG Atta - Physica Scripta, 2023 - iopscience.iop.org
In this research paper, we address the time-fractional heat conduction equation in one
spatial dimension, subject to nonlocal conditions in the temporal domain. To tackle this …

[HTML][HTML] Computational study for the Caputo sub-diffusive and Riesz super-diffusive processes with a fractional order reaction–diffusion equation

KM Owolabi - Partial Differential Equations in Applied Mathematics, 2023 - Elsevier
A Numerical solution of the Caputo-time and Riesz-space fractional reaction–diffusion
model is considered in this paper. Based on finite difference schemes, we formulate both …

Explicit Chebyshev Petrov–Galerkin scheme for time-fractional fourth-order uniform Euler–Bernoulli pinned–pinned beam equation

M Moustafa, YH Youssri, AG Atta - Nonlinear Engineering, 2023 - degruyter.com
In this research, a compact combination of Chebyshev polynomials is created and used as a
spatial basis for the time fractional fourth-order Euler–Bernoulli pinned–pinned beam. The …

A family of iterative methods to solve nonlinear problems with applications in fractional differential equations

R Erfanifar, M Hajarian… - Mathematical Methods in …, 2024 - Wiley Online Library
In this work, first, a family of fourth‐order methods is proposed to solve nonlinear equations.
The methods satisfy the Kung‐Traub optimality conjecture. By developing the methods into …

[PDF][PDF] Modal spectral Tchebyshev Petrov–Galerkin stratagem for the time-fractional nonlinear Burgers' equation

YH Youssri, AG Atta - Iranian Journal of Numerical Analysis and …, 2024 - ijnao.um.ac.ir
Herein, we construct an explicit modal numerical solver based on the spec-tral Petrov–
Galerkin method via a specific combination of shifted Cheby-shev polynomial basis for …

[HTML][HTML] Theoretical and numerical treatment for the fractal-fractional model of pollution for a system of lakes using an efficient numerical technique

M Adel, MM Khader - Alexandria Engineering Journal, 2023 - Elsevier
This article proposes an efficient simulation to investigate the fractal-fractional (FF) pollution
model's solution behavior for a network of three lakes connected by channels. With the aid of …

Shifted Second-Kind Chebyshev Spectral Collocation-Based Technique‎ for Time-Fractional KdV-Burgers' Equation

AG Atta, Y Hassan Youssri - Iranian Journal of Mathematical …, 2023 - ijmc.kashanu.ac.ir
‎ The main goal of this research work is to provide a numerical technique based on choosing
a set of basis functions for handling the third-order time-fractional Korteweg–De Vries …

Tau algorithm for fractional delay differential equations utilizing seventh-kind Chebyshev polynomials

WM Abd-Elhameed, YH Youssri… - Journal of Mathematical …, 2024 - jmm.guilan.ac.ir
Herein, we present an algorithm for handling fractional delay differential equations (FDDEs).
Chebyshev polynomials (CPs) class of the seventh kind is a subclass of the generalized …