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GMRES Solution of FEM-BEM Global Systems for Electrostatic Problems Without Voltaged Conductors

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5 Author(s)
Aiello, G. ; Dipt. di Ing. Elettr., Elettron. e Inf., Univ. di Catania, Catania, Italy ; Alfonzetti, S. ; Borzi, G. ; Dilettoso, E.
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This paper extends an iterative method to efficiently solve the global algebraic system of equations obtained by applying the hybrid FEM-BEM method to cases in which the field is due to charge distributions only, that is, when conductors with assigned potential (Dirichlet conditions) are not present. In the proposed approach, a conjugate gradient solver is used to solve the singular FEM equations, whereas the BEM equations are modified by means of the Gauss law.

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Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 5 )