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%0 Conference Proceedings
%A Haddar, Houssem
%A Hélie, Thomas
%A Matignon, Denis
%T A Webster-Lokshin model for waves with viscothermal losses and impedance boundary conditions: strong solutions
%D 2003
%B Waves - International Conference on Mathematical and Numerical Aspects of Wave Propagation Phenomena (INRIA)
%C Jyvaskyla
%V 6
%P 66-71
%F Haddar03a
%X Acoustic waves travelling in a duct with viscothermal losses at the wall and radiating conditions at both ends obey a Webster-Lokshin model that involves fractional time-derivatives in the domain and dynamical boundary conditions. This system can be interpreted as the coupling of three subsystems: a wave equation, a diffusive realization of the pseudo-differential time-operator and a dissipative realization of the impedance, thanks to the Kalman-Yakubovich-Popov lemma. Existence and uniqueness of strong solutions of the system are proved, using the Hille Yosida theorem.
%1 6
%2 3
%U http://articles.ircam.fr/textes/Haddar03a/
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