Abstract
The Fourier method in control systems reduces the study of controllability/observability to the study of related exponential families. In this paper we present examples of such systems, specifically those for which we can prove that the related exponential families form a Riesz basis in corresponding appropriately defined Sobolev spaces. This makes it possible to choose ‘natural’ pairs of spaces: the state space / observability space and the control space / state space, depending on whether an observation or a control problem is studied, respectively, so that the observation and control operators are isomorphisms.
This work was partially supported by the US National Science Foundation (grant #DMS-9501036) and by the Russian Fundamental Research Foundation (grant # 97-01-01115).
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Avdonin, S.A., Ivanov, S.A., Russell, D.L. (1999). Exponential Bases in Sobolev Spaces in Control and Observation Problems. In: Hoffmann, KH., Leugering, G., Tröltzsch, F., Caesar, S. (eds) Optimal Control of Partial Differential Equations. ISNM International Series of Numerical Mathematics, vol 133. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8691-8_3
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DOI: https://doi.org/10.1007/978-3-0348-8691-8_3
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