Algebraic Multigrid for Complex Symmetric Systems

  title={Algebraic Multigrid for Complex Symmetric Systems},
  author={Domenico Lahaye and Herbert De Gersem and Stefan Vandewalle and K. Hameyer},
The two dimensional quasistatic time-harmonic Maxwell formulations yield complex Helmholtz equations. Multigrid techniques are known to be efficient for solving the discretization of real valued diffusion equations. In this paper these multigrid techniques are extended to handle the complex equation. The implementation of geometric multigrid techniques can be cumbersome for practical engineering problems. Algebraic multigrid (AMG) techniques on the other hand automatically construct a hierarchy… CONTINUE READING
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