On the Hautus test for exponentially stable $C_0$-groups

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Jacob, B. and Zwart, H.J. (2009) On the Hautus test for exponentially stable $C_0$-groups. SIAM journal on control and optimization, 48 (3). pp. 1275-1288. ISSN 0363-0129

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Abstract:For finite-dimensional systems the Hautus test is a well-known and easy checkable condition for observability. Russell and Weiss [SIAM J. Control Optim, 32 (1994), pp. 1--32] suggested an infinite-dimensional version of the Hautus test, which is necessary for exact observability and sufficient for approximate observability of exponentially stable systems. In this paper it is shown that this Hautus test is sufficient for exact observability of certain exponentially stable systems generated by a $C_0$-group, and it is proved that the Hautus test is in general not sufficient for approximate observability of strongly stable systems even if the system is modeled
by a contraction semigroup and the observation operator is bounded.

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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62792
Official URL:http://dx.doi.org/10.1137/080724733
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