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Structural identifiability analysis via symmetries of differential equations
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Yates, James W. T., Evans, Neil D. and Chappell, M. J. (Michael J.) (2009) Structural identifiability analysis via symmetries of differential equations. Automatica, Vol.45 (No.11). pp. 2585-2591. doi:10.1016/j.automatica.2009.07.009
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Official URL: http://dx.doi.org/10.1016/j.automatica.2009.07.009
Abstract
Results and derivations are presented for the generation of a local Lie algebra that represents the 'symmetries' of a set of coupled differential equations. The subalgebra preserving the observation defined on the model structure is found, thus giving all transformations of the system that preserve its structure. It is shown that this is equivalent to the similarity transformation approach (Evans, Chapman, Chappell, & Godfrey, 2002) for structural identifiability analysis and as such is a method of generating such transformations for this approach. This provides another method for performing structural identifiability analysis on nonlinear state-space models that has the possibility of extension to PDE type models. The analysis is easily automated and performed in MATHEMATICA, and this is demonstrated by application the technique to a number of practical examples from the literature.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QA Mathematics T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science > Engineering | ||||
| Library of Congress Subject Headings (LCSH): | Differential equations , Parameter estimation, Lie algebras | ||||
| Journal or Publication Title: | Automatica | ||||
| Publisher: | Pergamon | ||||
| ISSN: | 0005-1098 | ||||
| Official Date: | November 2009 | ||||
| Dates: |
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| Volume: | Vol.45 | ||||
| Number: | No.11 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | pp. 2585-2591 | ||||
| DOI: | 10.1016/j.automatica.2009.07.009 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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