Residual-based a posteriori error estimator for the mixed finite element approximation of the biharmonic equation

A reliable and efficient residual-based a posteriori error estimator is derived for the Ciarlet-Raviart mixed finite element method for the biharmonic equation on polygonal domains. The performance of the estimator is illustrated by numerical experiments. © 2009 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq, 2010

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Original source : http://dx.doi.org/10.1002%2Fnum.20524...