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Adaptive Monotone Multigrid Methods for Nonlinear Variational Problems. Advances in Numerical Mathematics.

Adaptive Monotone Multigrid Methods for Nonlinear Variational Problems, Titelseite

Adaptive Monotone Multigrid Methods for Nonlinear Variational Problems, Titelseite

Kornhuber, R. – 1997

A wide range of problems occurring in engineering and industry is characterized by the presence of a free (i.e. a priori unknown) boundary where the underlying physical situation is changing in a discontinuous way. Mathematically, such phenomena can be often reformulated as variational inequalities or related non–smooth minimization problems. In these research notes, we will describe a new and promising way of constructing fast solvers for the corresponding discretized problems providing globally convergent iterative schemes with (asymptotic) multigrid convergence speed. The presentation covers physical modelling, existence and uniqueness results, finite element approximation and adaptive mesh–refinement based on a posteriori error estimation. The numerical properties of the resulting adaptive multilevel algorithm are illustrated by typical applications, such as semiconductor device simulation or continuous casting.

Title
Adaptive Monotone Multigrid Methods for Nonlinear Variational Problems
Author
Kornhuber, R.
Publisher
Vieweg+Teubner Verlag
Location
Stuttgart
Date
1997
Identifier
ISBN 3519027224
Language
eng