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arXiv:math/0111135 [math.DS]AbstractReferencesReviewsResources

For differential equations with r parameters, 2r+1 experiments are enough for identification

Eduardo D. Sontag

Published 2001-11-12, updated 2001-11-15Version 2

Given a set of differential equations whose description involves unknown parameters, such as reaction constants in chemical kinetics, and supposing that one may at any time measure the values of some of the variables and possibly apply external inputs to help excite the system, how many experiments are sufficient in order to obtain all the information that is potentially available about the parameters? This paper shows that the best possible answer (assuming exact measurements) is 2r+1 experiments, where r is the number of parameters.

Comments: This is a minor revision of the previously submitted report; a couple of typos have been fixed, and some comments and two new references have been added. Please see http://www.math.rutgers.edu/~sontag for related work
Categories: math.DS, math.OC
Subjects: 37C45, 93B30
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