Local coarsening of simplicial finite element meshes generated by bisections
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A simple criterion that allows the efficient local coarsening of simplicial finite element meshes generated by bisections is devised and analyzed. Under a mild condition on the initial triangulation the proposed criterion allows to gradually reverse the entire refinement without employing its history explicitly. Numerical experiments underline the efficiency of the resulting algorithm.
KeywordsBisection Coarsening Adaptivity Partial differential equations Finite elements
Mathematics Subject Classification (2010)65M50 65M60 65N50