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Eigenvectors of decomposed matrix

  1. Nov 17, 2014 #1
    Hello everyone,

    I've got the eigenvectors of a matrix H (Hessenberg matrix) obtained from the decomposition A=QHQ'.
    Now I seek the eigenvectors of the matrix A. I've found somewhere that it should be : eigenvector_of_A=Q*eigenvector_of_H but some numerical test with matlab doesn't agree.
    For the context: I'm using LAPACK (Fortran) routine to compute the eigenvectors of matrix for simulation purpose.

    What's the solution ?

    Thanks in advance,

  2. jcsd
  3. Nov 22, 2014 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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