A unified formulation of splitting-based implicit time integration schemes
Abstract
Splitting-based time integration approaches such as fractional steps, alternating direction implicit, operator splitting, and locally one-dimensional methods partition the system of interest into components and solve individual components implicitly in a cost-effective way. This work proposes a unified formulation of splitting time integration schemes in the framework of general-structure additive Runge-Kutta (GARK) methods. Specifically, we develop implicit-implicit (IMIM) GARK schemes, provide the order conditions and stability analysis for this class, and explain their application to partitioned systems of ordinary differential equations. We show that classical splitting methods belong to the IMIM GARK family, and therefore can be studied in this unified framework. New IMIM-GARK splitting methods are developed and tested using parabolic systems.
Cite
@article{arxiv.2103.00757,
title = {A unified formulation of splitting-based implicit time integration schemes},
author = {Severiano González-Pinto and Domingo Hernández-Abreu and Maria S. Pérez-Rodríguez and Arash Sarshar and Steven Roberts and Adrian Sandu},
journal= {arXiv preprint arXiv:2103.00757},
year = {2021}
}