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Exponential integrators

Open access
Hochbruck, Marlis, Ostermann, Alexander·2010·Acta Numerica

Abstract

In this paper we consider the construction, analysis, implementation and application of exponential integrators. The focus will be on two types of stiff problems. The first one is characterized by a Jacobian that possesses eigenvalues with large negative real parts. Parabolic partial differential equations and their spatial discretization are typical examples. The second class consists of highly oscillatory problems with purely imaginary eigenvalues of large modulus. Apart from motivating the construction of exponential integrators for various classes of problems, our main intention in this article is to present the mathematics behind these methods. We will derive error bounds that are independent of stiffness or highest frequencies in the system. Since the implementation of exponential integrators requires the evaluation of the product of a matrix function with a vector, we will briefly discuss some possible approaches as well. The paper concludes with some applications, in which exponential integrators are used.

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Metadata

Authors
Hochbruck, M., & Ostermann, A.
Venue
Acta Numerica
Published
2010-05
Volume
19
Pages
209-286
ISSN
  • 0962-4929 (ISSN-L)
  • 1474-0508
OpenAlex
W4211077197
Cited by
1,061
References
4
FWCI
27.19
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Exponential integrators. https://app.cochat.ai/papers/10.1017/s0962492910000048
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Hochbruck, M., & Ostermann, A. (2010). Exponential integrators. Acta Numerica. https://doi.org/10.1017/s0962492910000048

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.