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Computing reducing subspaces of a large linear matrix pencil

  • G. Hechmé and Yu. M. Nechepurenko
Published/Copyright: 2006
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Russian Journal of Numerical Analysis and Mathematical Modelling
From the journal Volume 21 Issue 3

This paper deals with the computation of the reducing subspace associated with the rightmost part of the spectrum of a large matrix pencil A–λ B with B = diag(I,0). Two variants of the Jacobi-Davidson method are discussed and developed. One is based on the Euclidean inner product and the second on the semi-inner product induced by B. Both versions use real arithmetics and incorporate an efficient deflation procedure. Numerical results are reported.

Published Online: --
Published in Print: 2006-05-01

Copyright 2006, Walter de Gruyter

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