期刊
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
卷 389, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cam.2020.113360
关键词
Riccati differential equations; Exponential integrators; phi-functions; Low-rank approximation
资金
- Jilin Scientific and Technological Development Program, PR China [20180101224JC, 20200201276JC]
- Natural Science Foundation of Jilin Province, PR China [20190499kJ, 20200822KJ]
- Scientific Startup Foundation for Doctors of Changchun Normal University, PR China [002006059]
This paper discusses numerical integration for large-scale systems of stiff Riccati differential equations using exponential Rosenbrock-type integrators, addressing implementation issues and utilizing low-rank approximations based on high quality numerical algebra codes. Numerical comparisons demonstrate the high accuracy and efficiency of exponential integrators for solving large-scale systems of stiff Riccati differential equations.
Riccati differential equations arise in many different areas and are particularly important within the field of control theory. In this paper we consider numerical integration for large-scale systems of stiff Riccati differential equations. We show how to apply exponential Rosenbrock-type integrators to get approximate solutions. Two typical exponential integration schemes are considered. The implementation issues are addressed and some low-rank approximations are exploited based on high quality numerical algebra codes. Numerical comparisons demonstrate that the exponential integrators can obtain high accuracy and efficiency for solving large-scale systems of stiff Riccati differential equations. (C) 2020 Elsevier B.V. All rights reserved.
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