How to recover the gradient of linear elements on nonuniform triangulations

DOI10.21136/am.1996.134325zbMath0870.65093OpenAlexW2267832109MaRDI QIDQ1363447

Vladislav Pištora, Michal Křížek, Ivan Hlaváček

Publication date: 7 August 1997

Published in: Applications of Mathematics (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/32949

zbMATH Keywords

superapproximationlinear elementsnonuniform triangulationssuperconvegenceweighted averaged gradient

Mathematics Subject Classification ID

Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30)

Related Items (5)

A recovered gradient method applied to smooth optimal shape problems ⋮ Averaging of gradient in the space of linear triangular and bilinear rectangular finite elements ⋮ Approximations of the partial derivatives by averaging ⋮ Averaging of directional derivatives in vertices of nonobtuse regular triangulations ⋮ Superconvergence results on mildly structured triangulations

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