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Diffraction d'ondes acoustiques par un guide semi-infini |
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| Institution: | 1. ENSTA/SMP, CNRS URA 853, chemin de la Hunière, 91761 Palaiseau, France;2. LAGA, Université Paris-Nord, avenue J.-B. Clément, 93430 Villetaneuse, France;1. Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK;2. Center for Turbulence Research, Stanford University, USA |
| Abstract: | We establish an existence and uniqueness result for an acoustic waves scattering problem by a bounded obstacle located in a homogeneous medium which contains a semi-infinite wave guide. We use a well-suited radiation condition. A Green function is calculated by using the Wiener-Hopf method and a priori estimates are proved to obtain the uniqueness property. |
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