Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
471589 | Computers & Mathematics with Applications | 2015 | 9 Pages |
Abstract
Efficient inverse subspace bi-iteration and bi-Newton methods for computing the spectral projector associated with a group of eigenvalues near a specified shift of a large sparse matrix is proposed and justified. Numerical experiments with a discrete analogue of a non-Hermitian elliptic operator are discussed to illustrate the theory.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science (General)
Authors
Kirill V. Demyanko, Yuri M. Nechepurenko, Miloud Sadkane,