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A monotone including multigrid-method

Ein monoton einschließendes Mehrgitterverfahren

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Abstract

In this paper we present the monotone including multigrid-algorithm MMG2, which is based on MMG, but faster than it. It solves weakly nonlinear elliptic bvp. The monotonicity is obtained by multiplying the interpolated coarse-grid corrections with componentwise adapted parameters. Two numerical examples are given.

Zusammenfassung

In der vorliegenden Arbeit wird der monoton einschließende Mehrgitteralgorithmus MMG2 vorgestellt, der auf MMG basiert, aber schneller ist. Er löst schwach nichtlineare elliptische Randwertprobleme. Die Monotonie erhält man durch Multiplikation der interpolierten Grobgitterkorrekturen mit komponentenweise angepaßten Parametern. Zwei numerische Beispiele werden präsentiert.

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Voller, R.L. A monotone including multigrid-method. Computing 45, 377–382 (1990). https://doi.org/10.1007/BF02238805

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  • DOI: https://doi.org/10.1007/BF02238805

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