The use of finite difference/element approaches for solving the time-fractional subdiffusion equation

F Zeng, C Li, F Liu, I Turner - SIAM Journal on Scientific Computing, 2013 - SIAM
In this paper, two finite difference/element approaches for the time-fractional subdiffusion
equation with Dirichlet boundary conditions are developed, in which the time direction is …

Numerical algorithms for time-fractional subdiffusion equation with second-order accuracy

F Zeng, C Li, F Liu, I Turner - SIAM Journal on Scientific Computing, 2015 - SIAM
This article aims to fill in the gap of the second-order accurate schemes for the time-
fractional subdiffusion equation with unconditional stability. Two fully discrete schemes are …

Fast evaluation of the Caputo fractional derivative and its applications to fractional diffusion equations: a second-order scheme

Y Yan, ZZ Sun, J Zhang - Communications in Computational Physics, 2017 - cambridge.org
The fractional derivatives include nonlocal information and thus their calculation requires
huge storage and computational cost for long time simulations. We present an efficient and …

Analytic Solution for the Strongly Nonlinear Multi‐Order Fractional Version of a BVP Occurring in Chemical Reactor Theory

VS Erturk, AK Alomari, P Kumar… - Discrete Dynamics in …, 2022 - Wiley Online Library
This study is devoted to constructing an approximate analytic solution of the fractional form
of a strongly nonlinear boundary value problem with multi‐fractional derivatives that comes …

Preconditioned iterative methods for fractional diffusion equation

FR Lin, SW Yang, XQ Jin - Journal of Computational Physics, 2014 - Elsevier
In this paper, we are concerned with numerical methods for the solution of initial–boundary
value problems of anomalous diffusion equations of order α∈(1, 2). The classical Crank …

A fast finite difference method for distributed-order space-fractional partial differential equations on convex domains

J Jia, H Wang - Computers & mathematics with applications, 2018 - Elsevier
Fractional partial differential equations (PDEs) provide a powerful and flexible tool for
modeling challenging phenomena including anomalous diffusion processes and long-range …

Preconditioned iterative methods for two-dimensional space-fractional diffusion equations

XQ Jin, FR Lin, Z Zhao - Communications in Computational Physics, 2015 - cambridge.org
In this paper, preconditioned iterative methods for solving two-dimensional space-fractional
diffusion equations are considered. The fractional diffusion equation is discretized by a …

A fast finite difference method for three-dimensional time-dependent space-fractional diffusion equations and its efficient implementation

H Wang, N Du - Journal of Computational Physics, 2013 - Elsevier
Fractional diffusion equations model phenomena exhibiting anomalous diffusion that cannot
be modeled accurately by second-order diffusion equations. Because of the non-local …

A second order finite difference-spectral method for space fractional diffusion equations

JF Huang, NM Nie, YF Tang - Science China Mathematics, 2014 - Springer
A high order finite difference-spectral method is derived for solving space fractional diffusion
equations, by combining the second order finite difference method in time and the spectral …

A divide-and-conquer fast finite difference method for space–time fractional partial differential equation

H Fu, MK Ng, H Wang - Computers & Mathematics with Applications, 2017 - Elsevier
Fractional partial differential equations (FPDEs) provide better modeling capabilities for
challenging phenomena with long-range time memory and spatial interaction than integer …