Interpolation of operators
On the abstract theory of additive and multiplicative Schwarz algorithms
Numerische Mathematik
V-cycle Convergence with Unsymmetric Smoothers and Application to an Anisotropic Model Problem
SIAM Journal on Numerical Analysis
Uniform convergence of the multigrid V-cycle for an anisotropic problem
Mathematics of Computation
Finite Element Method for Elliptic Problems
Finite Element Method for Elliptic Problems
Smoothers, mesh dependent norms, interpolation and multigrid
Applied Numerical Mathematics
Analysis of a modified Schrödinger operator in 2D: Regularity, index, and FEM
Journal of Computational and Applied Mathematics
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The multigrid V-cycle algorithm using the Richardson relaxation scheme as the smoother is studied in this paper. For second-order elliptic boundary value problems, the contraction number of the V-cycle algorithm is shown to improve uniformly with the increase of the number of smoothing steps, without assuming full elliptic regularity. As a consequence, the V-cycle convergence result of Braess and Hackbusch is generalized to problems without full elliptic regularity.