@Article{JCM-25-5, author = {}, title = {A Flexible Preconditioned Arnoldi Method for Shifted Linear Systems}, journal = {Journal of Computational Mathematics}, year = {2007}, volume = {25}, number = {5}, pages = {522--530}, abstract = {
We are interested in the numerical solution of the large nonsymmetric shifted linear system, $(A + \alpha I) x = b$, for many different values of the shift $\alpha$ 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.
}, issn = {1991-7139}, doi = {https://doi.org/2007-JCM-8710}, url = {https://global-sci.com/article/85024/a-flexible-preconditioned-arnoldi-method-for-shifted-linear-systems} }