Szukana fraza: [Abstract = "This paper deals with the problem of regional observability of hyperbolic systems in the case where the subregion of interest is a boundary part of the system evolution domain. We give a definition and establish characterizations in connection with the sensor structure. Then we show that it is possible to reconstruct the system state on a subregion of the boundary. The developed approach, based on the Hilbert uniqueness method \(Lions, 1988\), leads to a reconstruction algorithm. The obtained results are illustrated with numerical examples and simulations."]

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