A fourth-order least-squares based reproducing kernel method for one-dimensional elliptic interface problems

M Xu, L Zhang, E Tohidi - Applied Numerical Mathematics, 2021 - Elsevier
Increased attention has been paid on numerical modeling of interface problems as its wide
applications in various aspects of science. Motivated by enhancing the application of the …

Accurate solution and gradient computation for elliptic interface problems with variable coefficients

Z Li, H Ji, X Chen - SIAM journal on numerical analysis, 2017 - SIAM
A new augmented method is proposed for elliptic interface problems with a piecewise
variable coefficient that has a finite jump across a smooth interface. The main motivation is to …

Using radial basis function-generated finite differences (RBF-FD) to solve heat transfer equilibrium problems in domains with interfaces

B Martin, B Fornberg - Engineering Analysis with Boundary Elements, 2017 - Elsevier
When thermal diffusivity does not vary smoothly within a computational domain, standard
numerical methods for solving heat equilibrium problems often converge to an inaccurate …

Difference potentials method for the nonlinear convection-diffusion equation with interfaces

MT Tameh, F Shakeri - Applied Numerical Mathematics, 2024 - Elsevier
In this paper, the difference potentials method-based ADI finite difference scheme is
proposed for numerical solutions of two-dimensional nonlinear convection–diffusion …

High-order numerical schemes based on difference potentials for 2D elliptic problems with material interfaces

J Albright, Y Epshteyn, M Medvinsky, Q Xia - Applied Numerical …, 2017 - Elsevier
Numerical approximations and computational modeling of problems from Biology and
Materials Science often deal with partial differential equations with varying coefficients and …

High‐order numerical method for 2D biharmonic interface problem

M Tavakoli Tameh, F Shakeri - International Journal for …, 2022 - Wiley Online Library
We present a robust and effective method for the numerical solution of the biharmonic
interface problem with discontinuities in both the solution and its derivatives. We use a …

[HTML][HTML] A simplified reproducing kernel method for 1-D elliptic type interface problems

M Xu, Z Zhao, J Niu, L Guo, Y Lin - Journal of Computational and Applied …, 2019 - Elsevier
In this paper, an efficient numerical method is proposed for the 1D elliptic type interface
problems. We first construct a broken reproducing kernel space and then apply the …

High-order numerical methods for 2D parabolic problems in single and composite domains

G Ludvigsson, KR Steffen, S Sticko, S Wang… - Journal of Scientific …, 2018 - Springer
In this work, we discuss and compare three methods for the numerical approximation of
constant-and variable-coefficient diffusion equations in both single and composite domains …

[PDF][PDF] High-order accurate methods based on difference potentials for 2D parabolic interface models

J Albright, Y Epshteyn, Q Xia - Communications in Mathematical …, 2017 - math.utah.edu
Highly-accurate numerical methods that can efficiently handle problems with interfaces
and/or problems in domains with complex geometry are essential for the resolution of a wide …

A method of boundary equations for nonlinear Poisson–Boltzmann equation arising in biomolecular systems

MT Tameh, F Shakeri - Computational Mathematics and Mathematical …, 2024 - Springer
In this paper, we present a robust and accurate numerical algorithm for solving the nonlinear
Poisson–Boltzmann equation, based on the difference potentials method (DPM). First, we …