Hi Georg, as far as I know, you can not get the eigenvalues out of the box. Dune-ISTL has some eigenvalue computation support. I'd advice you to hack the DuMuX assembler and print everything into a Matlab/Octave file. Using their capabilities it's easy to obtain the eigenvalues. - you can get the matrix for example in dumux/implicit/common/implicitassembler.hh at the end of the assemble() method - use dune-istl's Dune::writeMatrixToMatlab
Bye
Christoph
--
... as Sir Cyril Hinshelwood has observed ...fluid dynamicists
were divided into hydraulic engineers who observed things that
could not be explained and mathematicians who explained things
that could not be observed. -- James Lighthill
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