Numerische Mathematik

, Volume 74, Issue 4, pp 385–395 | Cite as

Error estimators for a mixed method

  • A. Alonso


We present two a-posteriori error estimators for elliptic partial differential equations, when we use a mixed method. One is based on a adequate evaluation of the residual of the finite element solution and the other on the solution of a local problem. We prove their equivalence with the norm of the error, when the data is locally smooth.


Differential Equation Partial Differential Equation Local Problem Mixed Method Error Estimator 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • A. Alonso
    • 1
  1. 1.Departamento de Matemática, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CC 172, 1900 La Plata, ArgentinaAR

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