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On the postprocessing of mixed equilibrium finite element methods. (English) Zbl 0645.73033
Numerical techniques in continuum mechanics, Proc. 2nd GAMM-Semin., Kiel/Ger. 1986, Notes Numer. Fluid Mech. 16, 102-109 (1987).
[For the entire collection see Zbl 0612.00018.]
(Author’s summary.) We consider mixed equilibrium finite element methods for second order elliptic boundary value problems. A new postprocessing method for improving the original variables is introduced and analyzed.
Reviewer: V.A.Kostova

74S05 Finite element methods applied to problems in solid mechanics
65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs
35J25 Boundary value problems for second-order elliptic equations
Zbl 0612.00018