Hello Barbel.
About your eigenspectrum problem...
> Then I followed step-6 to deal with hanging nodes. But this seems
> to destroy the stiffness matrix or the eigenvectors. Which means the
> eigenvalues no longer converge to the right value.
What is the choice of your error indicator (an eigenvector? a potential?)
and which error estimator are you using (Kelly?). Kelly *should* be ok, if
you get the error indicator right to start with (and start with a
appropriately refined mesh).
Can you give a little information about what actually happens to the
eigenvalues using local refinement? What goes wrong (and what is right).
> @Wolfgang and/or Toby: Did you run step 36 on adaptively refined meshes
> and what did you observe?
Yes, works just fine.
Best,
Toby
-----
Toby D. Young
Assistant Professor
Institute of Fundamental Technological Problems
Polish Academy of Sciences
ul Adolfa Pawinskiego 5b
02-106 Warsaw
Poland
www: http://www.ippt.gov.pl/~tyoung
skype: stenografia
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