Abstract
AbstractThis paper presents numerical results for a preconditioning technique for the iterative solution of the indefinite linear system of equations obtained when a higher order H (curl) conforming finite element approximation is adopted for the vector wave equation. Numerical results are presented for a model problem that includes a singularity at the origin and dicretisations that include graded meshes and uniform p. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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