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Convergence and quasi-optimal complexityof a simple adaptive finite element method

Published online by Cambridge University Press:  21 August 2009

Roland Becker
Affiliation:
Laboratoire de Mathématiques Appliquées and INRIA Bordeaux Sud-Ouest Concha, Université de Pau, 64013 Pau Cedex, France. [email protected]; [email protected]
Shipeng Mao
Affiliation:
Institute of Computational Mathematics and INRIA Bordeaux Sud-Ouest Concha, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China. [email protected]
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Abstract

We prove convergence and quasi-optimal complexity of an adaptive finite element algorithm on triangular meshes with standard mesh refinement. Our algorithm is based on an adaptive marking strategy. In each iteration, a simple edge estimator is compared to an oscillation term and the marking of cells for refinement is done according to the dominant contribution only. In addition, we introduce an adaptive stopping criterion for iterative solution which compares an estimator for the iteration error with the estimator for the discretization error.

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2009

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