]> https://gitweb.dealii.org/ - dealii.git/commitdiff
Doc update.
authorWolfgang Bangerth <bangerth@math.tamu.edu>
Thu, 30 Apr 1998 14:15:08 +0000 (14:15 +0000)
committerWolfgang Bangerth <bangerth@math.tamu.edu>
Thu, 30 Apr 1998 14:15:08 +0000 (14:15 +0000)
git-svn-id: https://svn.dealii.org/trunk@229 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/deal.II/include/numerics/error_estimator.h

index 42dbd0140438d6b01786fa52cec57dd153d2b44f..e4d31301d02e84d4d2bee9c37e470f2fbf37d080 100644 (file)
@@ -30,7 +30,10 @@ class dVector;
    of Ainsworth for a complete discussion.
 
    It seem as if this error estimator should only be valid for linear ansatz
-   spaces, but no definite answer is given to this question at present.
+   spaces, and there are indications that for higher order ansatz spaces the
+   integrals computed here show superconvergence properties, i.e. they tend
+   to zero faster than the error itself, thus ruling out the values as error
+   indicators.
    
    
    {\bf Implementation}
@@ -74,6 +77,11 @@ class dVector;
 
    \item No other boundary conditions are considered.
    \end{itemize}
+
+   The integration along faces with hanging nodes is quite tricky, since one
+   of the elements has to be shifted one level up or down. See the
+   documentation for the #FEFaceValues# class for more information about
+   technical issues regarding this topic.
    
    @author Wolfgang Bangerth, 1998; thanks to Franz-Theo Suttmeier for
      clarifications about boundary conditions.

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