期刊
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
卷 381, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cam.2020.113032
关键词
Singular systems; Linear fractional transformation; Differential equations; Robustness; Stability
资金
- Science Foundation Ireland (SFI) [SFI/15/IA/3074]
This article investigates the response of stability in a class of singular linear systems of differential equations with constant matrix coefficients after perturbation, providing a practical test for robust stability using a linear fractional transformation. The test only requires knowledge of the invariants of the initial system and can be applied to perturbed systems without further computation. Numerical examples are provided to support and discuss practical applications of the proposed theory.
In this article, we consider a class of singular linear systems of differential equations whose coefficients are constant matrices, and study the response of its stability after a perturbation is applied into the system. We use a linear fractional transformation and through its properties we provide a practical test for robust stability. This test requires only the knowledge of the invariants of the initial system. This means it can be used without resorting to any further processes of computations to obtain invariants of any other perturbed system. Finally, numerical examples are given to support and discuss practical applications of the proposed theory. (C) 2020 Elsevier B.V. All rights reserved.
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