We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A FLEXIBLE PRECONDITIONED ARNOLDI METHOD FOR SHIFTED LINEAR SYSTEMS.
- Authors
Gu, G.-D.; Zhou, X.-L.; Lei Lin
- Abstract
We are interested in the numerical solution of the large nonsymmetric shifted linear system, (A + αI)x = b, for many different values of the shift a in a wide range. We apply the Saad's flexible preconditioning technique [14] to the solution of the shifted systems. Such flexible preconditioning with a few parameters could probably cover all the shifted systems with the shift in a wide range. Numerical experiments report the effectiveness of our approach on some problems.
- Subjects
LINEAR systems; MATRICES (Mathematics); SYSTEMS theory; ALGORITHMS; MATHEMATICS
- Publication
Journal of Computational Mathematics, 2007, Vol 25, Issue 5, p522
- ISSN
0254-9409
- Publication type
Article