THE COMBINATION OF BCGSTAB WITH MULTIFRONTAL ALGORITHM TO SOLVE FEBI-MLFMA LINEAR SYSTEMS ARISING FROM INHOMOGENEOUS ELECTROMAGNETIC SCATTERING PROBLEMS

The hybrid finite-element/boundary-integral method (FEBI) combined with the multilevel fast multipole algorithm (MLFMA) has been applied to model the three-dimensional scattering problems of inhomogeneous media. The stabilized Bi-conjugate gradient (BCGAT