Negative norm estimates and superconvergence in Galerkin methods for parabolic problems. (English) Zbl 0454.65077
MSC:
65N30 | Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs |
65N15 | Error bounds for boundary value problems involving PDEs |
35K15 | Initial value problems for second-order parabolic equations |
35K20 | Initial-boundary value problems for second-order parabolic equations |