Algorithm 845: EIGIFP: a MATLAB program for solving large symmetric generalized eigenvalue problems

  • Authors:
  • James H. Money;Qiang Ye

  • Affiliations:
  • University of Kentucky, Lexington, KY;University of Kentucky, Lexington, KY

  • Venue:
  • ACM Transactions on Mathematical Software (TOMS)
  • Year:
  • 2005

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Abstract

eigifp is a MATLAB program for computing a few extreme eigenvalues and eigenvectors of the large symmetric generalized eigenvalue problem Ax = λ Bx. It is a black-box implementation of an inverse free preconditioned Krylov subspace projection method developed by Golub and Ye [2002]. It has important features that allow it to solve some difficult problems without any input from users. It is particularly suitable for problems where preconditioning by the standard shift-and-invert transformation is not feasible.