SEMINAIRE D'ANALYSE NUMERIQUE
Année universitaire 2007-2008


Jeudi 14 février 2008 :  Christophe GEUZAINE  (Liège, Belgique)
Solveurs équations intégrales en haute fréquence pour des problèmes de diffraction acoustique et électromagnétique.

High-Frequency Integral Equation Solvers for Acoustic and Electromagnetic Scattering Problems.

Current state-of-the-art algorithms for the solution of acoustic and electromagnetic scattering problems are limited by the competing demands of accuracy, which typically requires an increasing number of degrees of freedom to resolve the solution on the scale of a wavelength, and efficiency, which favors coarse discretizations. In this talk we will present high-frequency integral equation solvers that successfully deal with these requirements by avoiding the need to discretize on the scale of the wavelength at high-frequencies, while retaining error-controllability and high-order convergence characteristics.