A novel RBF-based meshless method for solving time-fractional transport equations in 2D and 3D arbitrary domains

J Lin, J Bai, S Reutskiy, J Lu - Engineering with Computers, 2023 - Springer
In this paper, we develop a new meshless method for solving a wide class of time-fractional
partial differential equations with general space operators in 2D and 3D regular and …

An accurate RBF–based meshless technique for the inverse multi-term time-fractional integro-differential equation

F Safari - Engineering Analysis with Boundary Elements, 2023 - Elsevier
Using the Grünwald difference operator one reduces the inverse boundary value problem of
the multi-term time-fractional integro-differential equation (TFIDE) in two dimensions to a …

Solving multi-dimensional inverse heat problems via an accurate RBF-based meshless technique

F Safari - International Journal of Heat and Mass Transfer, 2023 - Elsevier
We present a meshless method to assess the inverse heat problem (IHP) on multi-
dimensional (multi-D) by the correcting functions. Fulfillment of the scheme is a reformulation …

Time discretization for modeling migration of groundwater contaminant in the presence of micro-organisms via a semi-analytic method

F Safari, T Qingshan, W Chen - Computers & Mathematics with Applications, 2023 - Elsevier
The parabolic systems for migration of groundwater contaminants are studied through the
semi-analytic method (SAM). For systems, a modification of the classic trigonometric basis …

A meshless method to solve the variable-order fractional diffusion problems with fourth-order derivative term

F Safari, L Jing, J Lu, W Chen - Engineering Analysis with Boundary …, 2022 - Elsevier
Using the meshless collocation method, a scheme for solving nonlinear variable-order
fractional diffusion equations with a fourth-order derivative term is presented. Here the …

The novel analytical–numerical method for multi-dimensional multi-term time-fractional equations with general boundary conditions

J Lin, S Reutskiy, Y Zhang, Y Sun, J Lu - Mathematics, 2023 - mdpi.com
This article presents a simple but effective two-step analytical–numerical algorithm for
solving multi-dimensional multi-term time-fractional equations. The first step is to derive an …

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 …

Numerical approximations for space–time fractional Burgers' equations via a new semi-analytical method

F Safari, W Chen - Computers & Mathematics with Applications, 2021 - Elsevier
The objectives of this research describes a novel meshless technique for solving space–
time fractional Burgers' equation by using concept of weighted and Caputo fractional …

[HTML][HTML] Numerical analysis with a class of trigonometric functions for nonlinear time fractional Wu-Zhang system

F Safari, JJ Nieto - Alexandria Engineering Journal, 2024 - Elsevier
We study the implementation of a numerical method to solve the time fractional (2+ 1)-
dimensional Wu–Zhang system focusing on properties of trigonometric basis functions …

A meshfree approach for solving fractional Galilei invariant advection–diffusion equation through weighted–shifted Grünwald operator

F Safari, Q Tong, Z Tang, J Lu - Mathematics, 2022 - mdpi.com
Fractional Galilei invariant advection–diffusion (GIADE) equation, along with its more
general version that is the GIADE equation with nonlinear source term, is discretized by …