[Getdp] complex eigenvalues

[André Nicolet]

Hello,


Some features make the use of postprocessing with eigenvalues (using Lanczos algorithm) difficult.

1) Eigenvectors are stored as a time sequence as if it was the solution of a transient problem, real part of the 1st eigenv., imaginary part of the 1st eigenv., real part of the 2nd eigenv., etc. : How is it possible to access real part together with imaginary part in the postpro ? Are other time steps visible ? For instance, how can you get the complex Poynting which is the cross product of the electric field by the complex conjugate of the magnetic field ?

2) The eigenvectors are known up to an arbitrary scalar factor (different for each eigenv.). Could it be possible to add a normation facility e.g. fixing L2 norm to 1 or max norm to 1 options ? This could be a great help in visualisation !

3) How can you recuperate the corresponding eigenvalue in the post pro ?

Regards


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Prof. André Nicolet
Université d'Aix-Marseille III
Dom. Univ. de Saint-Jérôme
Service 162 
Institut Fresnel (UMR 6133)
Avenue Escadrille Normandie-Niemen
F-13397 Marseille cedex 20
France
tel +33 4 91 28 87 73
fax +33 4 91 28 88 80
secr +33 4 91 28 83 76
mailto:andre.nicolet at fresnel.fr
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