Improved non-overlapping domain decomposition algorithms for the eddy   current problem
  A domain decomposition method is proposed based on carefully chosen impedance transmission operators for a hybrid formulation of the eddy current problem. Preliminary analysis and numerical results are provided in the spherical case showing the potential of these conditions in accelerating the convergence rate 
Y. Boubendir and H. Haddar and M. K. Riahi
math.NA math.AP