Some results on a posteriori error estimation for approximate solutions of second order elliptic problems. (English) Zbl 0426.65055
MSC:
65N15 | Error bounds for boundary value problems involving PDEs |
65N30 | Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs |
35J25 | Boundary value problems for second-order elliptic equations |