A truncated-CG style method for symmetric generalized eigenvalue problems

  • Authors:
  • P. -A. Absil;C. G. Baker;K. A. Gallivan

  • Affiliations:
  • Department of Mathematical Engineering, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium and Peterhouse, University of Cambridge, Cambridge CB2 1RD, UK;School of Computational Science, Florida State University, Tallahassee, FL 32306-4120, USA;School of Computational Science, Florida State University, Tallahassee, FL 32306-4120, USA

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2006

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Abstract

A numerical algorithm is proposed for computing an extreme eigenpair of a symmetric/positive-definite matrix pencil (A,B). The leftmost or the rightmost eigenvalue can be targeted. Knowledge of (A,B) is only required through a routine that performs matrix-vector products. The method has excellent global convergence properties and its local rate of convergence is superlinear. It is based on a constrained truncated-CG trust-region strategy to optimize the Rayleigh quotient, in the framework of a recently proposed trust-region scheme on Riemannian manifolds.