A Fast Vector Potential Method Using Tangentially Continuous Vector Finite Elements
نویسندگان
چکیده
An eecient nite element method for driven time-harmonic wave propagation problems is proposed. The special properties of tangentially continuous vector nite elements (TVFEMs) are utilized to formulate an ungauged vector potential scheme in terms of the eld method plus one very sparse \gradient matrix" with two non-zero integer or pointer entries per row. The suggested formalism is intended for use with iterative solvers. It combines the simplicity and modest memory requirements of the eld formulation with the superior numerical convergence of the ungauged vector potential scheme.
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