We survey the literature on robust multigrid methods which have been developed in recent years for solving second-order elliptic PDEs with nonsmooth coefficients. We highlight the key ideas of designing robust multigrid methods which are able to recover the usual multigrid efficiency for nonsmooth coefficient PDEs on structured or unstructured grids. In particular, we shall describe various approaches for constructing the interpolation and the smoothing operators, and the coarse grid points selections.
|Original language||English (US)|
|Number of pages||30|
|Journal||Journal of Computational and Applied Mathematics|
|State||Published - Nov 1 2000|
ASJC Scopus subject areas
- Computational Mathematics
- Applied Mathematics