Higher-order additive Runge–Kutta schemes for ordinary differential equations

CA Kennedy, MH Carpenter - Applied numerical mathematics, 2019 - Elsevier
Two new implicit–explicit, additive Runge–Kutta (ARK 2) methods are given with fourth-and
fifth-order formal accuracies, respectively. Both combine explicit Runge–Kutta (ERK) …

Multifluid simulations of upper-chromospheric magnetic reconnection with Helium–Hydrogen mixture

QM Wargnier, J Martinez-Sykora… - The Astrophysical …, 2023 - iopscience.iop.org
Our understanding of magnetic reconnection (MR) under chromospheric conditions remains
limited. Recent observations have demonstrated the important role of ion–neutral …

Paired explicit Runge-Kutta schemes for stiff systems of equations

BC Vermeire - Journal of Computational Physics, 2019 - Elsevier
In this paper we introduce a family of explicit Runge-Kutta methods, referred to as Paired
Explicit Runge-Kutta (P-ERK) schemes, that are suitable for the solution of stiff systems of …

Stabilized multilevel Monte Carlo method for stiff stochastic differential equations

A Abdulle, A Blumenthal - Journal of Computational Physics, 2013 - Elsevier
Abstract A multilevel Monte Carlo (MLMC) method for mean square stable stochastic
differential equations with multiple scales is proposed. For such problems, that we call stiff …

Accurate implicit–explicit general linear methods with inherent Runge–Kutta stability

M Braś, G Izzo, Z Jackiewicz - Journal of Scientific Computing, 2017 - Springer
We investigate implicit–explicit (IMEX) general linear methods (GLMs) with inherent Runge–
Kutta stability (IRKS) for differential systems with non-stiff and stiff processes. The …

Conservative stabilized runge-kutta methods for the vlasov-fokker-planck equation

I Almuslimani, N Crouseilles - Journal of Computational Physics, 2023 - Elsevier
In this work, we aim at constructing numerical schemes, that are as efficient as possible in
terms of cost and conservation of invariants, for the Vlasov–Fokker–Planck system coupled …

On thermal conduction in the solar atmosphere: An analytical solution for nonlinear diffusivity without compact support

SV Furuseth, G Cherry, J Martínez-Sykora - Astronomy & Astrophysics, 2024 - aanda.org
Context. The scientific community employs complicated multiphysics simulations to
understand the physics in solar, stellar, and interstellar media. These must be tested against …

A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting

EO Asante-Asamani, A Kleefeld, BA Wade - Journal of computational …, 2020 - Elsevier
A second-order L-stable exponential time-differencing (ETD) method is developed by
combining an ETD scheme with approximating the matrix exponentials by rational functions …

Explicit stabilized multirate method for stiff differential equations

A Abdulle, M Grote, G Rosilho de Souza - Mathematics of Computation, 2022 - ams.org
Stabilized Runge–Kutta methods are especially efficient for the numerical solution of large
systems of stiff nonlinear differential equations because they are fully explicit. For semi …

Explicit stabilized integrators for stiff optimal control problems

I Almuslimani, G Vilmart - SIAM Journal on Scientific Computing, 2021 - SIAM
Explicit stabilized methods are an efficient alternative to implicit schemes for the time
integration of stiff systems of differential equations in large dimension. In this paper we …