New results concerning the DWR method for some nonconforming FEM
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Abstract
This paper presents a unified framework for the dual-weighted residual (DWR) method for a class of nonconforming FEM. Our approach is based on a modification of the dual problem and uses various ideas from literature which are combined in a new manner. The results are new error identities for some nonconforming FEM. Additionally, a posteriori error estimates with respect to the discrete H 1-seminorm are derived.
Keywords
nonconforming finite elements dual-weighted residual method a posteriori error estimateMSC 2010
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© Institute of Mathematics of the Academy of Sciences of the Czech Republic, Praha, Czech Republic 2012