[PDF][PDF] A new α-robust nonlinear numerical algorithm for the time fractional nonlinear KdV equation

C Li, H Zhang, X Yang - Commun. Anal. Mech, 2024 - aimspress.com
In this work, we consider an α-robust high-order numerical method for the time fractional
nonlinear Korteweg-de Vries (KdV) equation. The time fractional derivatives are discretized …

[HTML][HTML] A numerical method for distributed order time fractional diffusion equation with weakly singular solutions

J Ren, H Chen - Applied Mathematics Letters, 2019 - Elsevier
A finite difference/spectral method is proposed for the numerical approximation of a
distributed order time fractional diffusion equation with initial singularity on two dimensional …

Analysis of the L1 scheme for a time fractional parabolic–elliptic problem involving weak singularity

S Santra, J Mohapatra - Mathematical Methods in the Applied …, 2021 - Wiley Online Library
A time fractional initial boundary value problem of mixed parabolic–elliptic type is
considered. The domain of such problem is divided into two subdomains. A reaction …

Existence of extremal solutions of fractional Langevin equation involving nonlinear boundary conditions

H Fazli, HG Sun, S Aghchi - International Journal of Computer …, 2021 - Taylor & Francis
Fractional Langevin equation describes the evolution of physical phenomena in fluctuating
environments for the complex media systems. It is a sequential fractional differential …

An α-robust finite element method for a multi-term time-fractional diffusion problem

C Huang, M Stynes, H Chen - Journal of Computational and Applied …, 2021 - Elsevier
A time-fractional initial–boundary problem is considered on a bounded spatial domain Ω⊂
R d, where d∈{1, 2, 3} and Ω is convex or smooth. The differential equation is∑ i= 1 lqi D t α …

A fully discrete scheme based on cubic splines and its analysis for time-fractional reaction–diffusion equations exhibiting weak initial singularity

A Singh, S Kumar, J Vigo-Aguiar - Journal of Computational and Applied …, 2023 - Elsevier
The aim of this paper is to design and analyze a robust fully discrete scheme based on cubic
splines for numerically solving a time-fractional reaction–diffusion equation (TFRDE) with …

Discrete comparison principle of a finite difference method for the multi-term time fractional diffusion equation

Y Wang, Y Zhao, H Chen - Numerical Algorithms, 2023 - Springer
A discrete comparison principle is given for the multi-term time fractional diffusion equation,
where the discrete scheme is based on L1 approximation of the multi-term temporal Caputo …

Numerical treatment of multi-term time fractional nonlinear KdV equations with weakly singular solutions

S Santra, J Mohapatra - International Journal of Modelling and …, 2023 - Taylor & Francis
The main aim of this work is to construct an efficient recursive numerical technique for
solving multi-term time fractional nonlinear KdV equation. The fractional derivatives are …

Local error estimate of L1 scheme for linearized time fractional KdV equation with weakly singular solutions

H Chen, M Chen, T Sun, Y Tang - Applied Numerical Mathematics, 2022 - Elsevier
We consider the local error estimate of the L1 scheme on graded mesh for a linearized time
fractional KdV equation with weakly singular solutions, where Legendre Petrov–Galerkin …

Error analysis of a finite difference method for the distributed order sub-diffusion equation using discrete comparison principle

D Cao, H Chen - Mathematics and Computers in Simulation, 2023 - Elsevier
A finite difference method for numerically solving the initial boundary value problem of
distributed order sub-diffusion equations with weakly singular solutions is presented, where …