Study and improvement of the condition number of the electric field integral equation

• Autores: Xavier Antoine, A. Bendali, M. Darbas
• Localización: VII Jornadas Zaragoza-Pau de Matemática Aplicada y estadística: Jaca (Huesca). 17-18 de septiembre de 2001 / coord. por Monique Madaune-Tort , 2003, ISBN 84-96214-04-4, págs. 73-80
• Idioma: inglés
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• Resumen

  • The discretization of the Electric Field Integral Equation (EFIE) leads to the solution of a dense complex non-hermitian linear system. It is well-known that the related linear system becomes ill-conditioned particularly when the frequency increases. As a consequence, its solution by a subspace Krylov iterative algorithm has a very slow convergence. In this work, we examine the possibility to speed up the convergence by constructing a Calderón-type implicit preconditioner.