A Generalized Minimal Residual Acceleration of the Charge Iteration Procedure

Charge iteration is a procedure for the computation of unbounded electrostatic fields induced by voltaged conductors. It is based on the iterative improvement of a Dirichlet condition on a fictitious boundary enclosing all the conductors. In this paper the improvement is shown to be equivalent to the use of Richardson's method on a reduced system. A conspicuous reduction in computational and memory requirements is achieved by means of GMRES acceleration on this reduced system.