Abstract
AbstractAfter discretizing the partial differential equations from mechanics, one usually obtains large systems of (non)linear equations. Their efficient solution requires the use of fast iterative methods. Multigrid iterations are able to solve linear and nonlinear systems with a rather fast rate of convergence, provided the problem is of elliptic type. This contribution describes the basic construction of multigrid methods, their ingredients, related methods, and their application to various problem classes. Although most of the applications concern FEM (finite element method) discretizations of partial differential equations, there are also applications to integral equations as they occur in boundary element methods (BEMs).
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