We present a family of preconditioners based on the auxiliary space method for a discontinuous Galerkin discretization on cubical meshes of H(curl;Ω)-elliptic problems with possibly discontinuous coefficients. We address the influence of possible discontinuities in the coefficients on the asymptotic performance of the proposed solvers and present numerical results in two dimensions.
|Title of host publication||Domain Decomposition methods in Science and Engineering XXIV|
|Publisher||Springer International Publishing|
|Number of pages||9|
|Publication status||Published - 2018|
|Name||Lecture Notes in Computational Science and Engineering|