2010 | OriginalPaper | Buchkapitel
The 1-D Wave and Rod Equations Governed by Controls That Are Time-Dependent Only
verfasst von : Alexander Y. Khapalov
Erschienen in: Controllability of Partial Differential Equations Governed by Multiplicative Controls
Verlag: Springer Berlin Heidelberg
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We discuss the early results from [8] on global approximate reachability of the 1-D wave equation with Dirichlet boundary conditions and the rod equation with hinged ends in the case when the multiplicative control is time-dependent only. The methods of [8] make use of the inverse function theorem and involve dealing with the associated Riesz bases of exponential time-dependent functions under the additional assumption that all the modes in the initial datum are present.