3D FEM-BEM-Coupling Method to solve Magnetostatic Maxwell Equations

Abstract 3D magnetostatic Maxwell equations are solved using the direct Johnson–Nedelec FEM–BEM coupling method and a reduced scalar potential approach. The occurring BEM matrices are calculated analytically and approximated by H-matrices using the ACA+ algorithm. In addition a proper preconditioning method is suggested that allows to solve large-scale problems using iterative solvers.

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