second-order elliptic boundary value problems
Applications of multigrid algorithms to finite difference schemes for elliptic equations with variable coefficients
Convergence bounds for a multigrid method for a finite difference discretization of elliptic self-adjoint second-order elliptic partial differential equations are given, using the regularity-free approach of \textit{J. H. Bramble} et al. [Math. Comput. 57, No. 195, 23--45 (1991; Zbl 0727.65101)]. An implementation is described and the convergence is illustrated computationally on an L-shaped domain.
scientific article; zbMATH DE number 6340636