Skip to Main Content

Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2024 MCQ for Mathematics of Computation is 1.78.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Uniform accuracy of implicit-explicit Runge-Kutta (IMEX-RK) schemes for hyperbolic systems with relaxation
HTML articles powered by AMS MathViewer

by Jingwei Hu and Ruiwen Shu;
Math. Comp. 94 (2025), 209-240
DOI: https://doi.org/10.1090/mcom/3967
Published electronically: March 28, 2024

Abstract:

Implicit-explicit Runge-Kutta (IMEX-RK) schemes are popular methods to treat multiscale equations that contain a stiff part and a non-stiff part, where the stiff part is characterized by a small parameter $\varepsilon$. In this work, we prove rigorously the uniform stability and uniform accuracy of a class of IMEX-RK schemes for a linear hyperbolic system with stiff relaxation. The result we obtain is optimal in the sense that it holds regardless of the value of $\varepsilon$ and the order of accuracy is the same as the design order of the original scheme, i.e., there is no order reduction.
References
Similar Articles
Bibliographic Information
  • Jingwei Hu
  • Affiliation: Department of Applied Mathematics, University of Washington, Seattle, Washington 98195
  • MR Author ID: 933436
  • ORCID: 0000-0001-6792-6711
  • Email: hujw@uw.edu
  • Ruiwen Shu
  • Affiliation: Department of Mathematics, University of Georgia, Athens, Georgia 30602
  • MR Author ID: 1204137
  • Email: ruiwen.shu@uga.edu
  • Received by editor(s): June 14, 2023
  • Received by editor(s) in revised form: November 17, 2023
  • Published electronically: March 28, 2024
  • Additional Notes: The work of the first author was partially supported by NSF DMS-2153208, AFOSR FA9550-21-1-0358, and DOE DE-SC0023164. The work of the second author was supported by the Advanced Grant Nonlocal-CPD (Nonlocal PDEs for Complex Particle Dynamics: Phase Transitions, Patterns and Synchronization) of the European Research Council Executive Agency (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 883363).
  • © Copyright 2024 American Mathematical Society
  • Journal: Math. Comp. 94 (2025), 209-240
  • MSC (2020): Primary 35L03, 65L04, 65L06, 65M12
  • DOI: https://doi.org/10.1090/mcom/3967