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Re: ARPACK again
Posted:
Oct 2, 2017 10:28 AM


Hi Can I please ask also a question related to this old one? I have successfully made a test with ARPACK mode 4 (buckling) and I am able to find the desired number of eigenvalues of a generalized eigenvalue problem. How can I find the corresponding eigenvectors, for the original example, defined with the original K and Kg nxn matrices and not for the smaller tridiagonal ncvxncv matrix ? Is this possible? The requested eigenvalues of the original example and the reduced tridiagonal matrix are the same. What is the relation between eigenvectors? Thank you



