Splitting methods for differential equations

S Blanes, F Casas, A Murua - arXiv preprint arXiv:2401.01722, 2024 - arxiv.org
This overview is devoted to splitting methods, a class of numerical integrators intended for
differential equations that can be subdivided into different problems easier to solve than the …

Overcoming order reduction in diffusion-reaction splitting. Part 2: Oblique boundary conditions

L Einkemmer, A Ostermann - SIAM Journal on Scientific Computing, 2016 - SIAM
Splitting methods constitute a well-established class of numerical schemes for the time
integration of partial differential equations. Their main advantages over more traditional …

[HTML][HTML] Avoiding order reduction when integrating reaction–diffusion boundary value problems with exponential splitting methods

I Alonso-Mallo, B Cano, N Reguera - Journal of Computational and Applied …, 2019 - Elsevier
In this paper, we suggest a technique to avoid order reduction in time when integrating
reaction–diffusion boundary value problems under non-homogeneous boundary conditions …

How to avoid order reduction when Lawson methods integrate nonlinear initial boundary value problems

B Cano, N Reguera - BIT Numerical Mathematics, 2022 - Springer
It is well known that Lawson methods suffer from a severe order reduction when integrating
initial boundary value problems where the solutions are not periodic in space or do not …

Error estimates for a splitting integrator for abstract semilinear boundary coupled systems

P Csomós, B Farkas, B Kovács - IMA Journal of Numerical …, 2023 - academic.oup.com
We derive a numerical method, based on operator splitting, to abstract parabolic semilinear
boundary coupled systems. The method decouples the linear components that describe the …

Boundary treatment of implicit-explicit Runge-Kutta method for hyperbolic systems with source terms

W Zhao, J Huang - Journal of Computational Physics, 2020 - Elsevier
In this paper, we develop a high order finite difference boundary treatment method for the
implicit-explicit (IMEX) Runge-Kutta (RK) schemes solving hyperbolic systems with possibly …

Comparison of efficiency among different techniques to avoid order reduction with Strang splitting

I Alonso‐Mallo, B Cano… - Numerical Methods for …, 2021 - Wiley Online Library
In this article, we offer a comparison in terms of computational efficiency between two
techniques to avoid order reduction when using Strang method to integrate nonlinear initial …

[HTML][HTML] Avoiding order reduction when integrating nonlinear Schrödinger equation with Strang method

B Cano, N Reguera - Journal of Computational and Applied Mathematics, 2017 - Elsevier
In this paper a technique is suggested to avoid order reduction when using Strang method to
integrate nonlinear Schrödinger equation subject to time-dependent Dirichlet boundary …

A comparison of boundary correction methods for Strang splitting

L Einkemmer, A Ostermann - arXiv preprint arXiv:1609.05505, 2016 - arxiv.org
In this paper we consider splitting methods in the presence of non-homogeneous boundary
conditions. In particular, we consider the corrections that have been described and analyzed …

Constraint Energy Minimizing Generalized Multiscale Finite Element Method for Convection Diffusion Equations with Inhomogeneous Boundary Conditions

PC Wong, ET Chung, C Ye, L Zhao - arXiv preprint arXiv:2408.00304, 2024 - arxiv.org
In this paper, we develop the constraint energy minimizing generalized multiscale finite
element method (CEM-GMsFEM) for convection-diffusion equations with inhomogeneous …