Implicitly restarted Arnoldi with purification for the shift-invert transformation

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Implicitly restarted Arnoldi with purification for the shift-invert transformation

The need to determine a few eigenvalues of a large sparse generalised eigenvalue problem Ax = λBx with positive semidefinite B arises in many physical situations, for example, in a stability analysis of the discretised Navier-Stokes equation. A common technique is to apply Arnoldi’s method to the shift-invert transformation, but this can suffer from numerical instabilities as is illustrated by ...

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ژورنال

عنوان ژورنال: Mathematics of Computation

سال: 1997

ISSN: 0025-5718

DOI: 10.1090/s0025-5718-97-00844-2