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Paper   IPM / M / 7649
School of Mathematics
  Title:   Richardson extrapolations of Galerkin finite element methods for parabolic partial differential equations
  Author(s): 
1.  W. Huang
2.  T. Liu
3.  M. Rao
4.  H. Azari
5.  Sh. Zhang
  Status:   Published
  Journal: Dynam. Contin. Discrete Impuls. Systems
  Vol.:  11
  Year:  2004
  Pages:   653-664
  Supported by:  IPM
  Abstract:
The object of this paper is to investigate Richardson extrapolation of two different schemes for finite element approximations of a linear parabolic partial differential equation with a homogeneous Dirichlet boundary conditions, which can lead significantly to the improvement in the accuracy of approximations with the help of an interpolation postprocessing technique. As a by-product, we illustrate that all the approximations of high accuracy can be used to generate a posteriori error estimators.

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