A robust iterative scheme for symmetric indefinite systems
| dc.contributor.author | Manguğlu, Murat | |
| dc.contributor.author | Mehrmann, Volker | |
| dc.date.accessioned | 2021-12-17T10:15:26Z | |
| dc.date.available | 2021-12-17T10:15:26Z | |
| dc.date.issued | 2018-09-27 | |
| dc.description.abstract | We propose a two-level nested preconditioned iterative scheme for solving sparse linear systems of equations in which the coefficient matrix is symmetric and indefinite with relatively small number of negative eigenvalues. The proposed scheme consists of an outer Minimum Residual (MINRES) iteration, preconditioned by an inner Conjugate Gradient (CG) iteration in which CG can be further preconditioned. The robustness of the proposed scheme is illustrated by solving indefinite linear systems that arise in the solution of quadratic eigenvalue problems in the context of model reduction methods for finite element models of disk brakes as well as on other problems that arise in a variety of applications. | en |
| dc.identifier.issn | 2197-8085 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/15903 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-14676 | |
| dc.language.iso | en | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.ddc | 510 Mathematik | en |
| dc.subject.other | symmetric indefinite systems | en |
| dc.subject.other | Krylov subspace method | en |
| dc.subject.other | sparse linear systems | en |
| dc.subject.other | deflation | en |
| dc.subject.other | preconditioned minimum residual method | en |
| dc.subject.other | preconditioned conjugate gradient method | en |
| dc.title | A robust iterative scheme for symmetric indefinite systems | en |
| dc.type | Research Paper | en |
| dc.type.version | submittedVersion | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Mathematik | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.institute | Inst. Mathematik | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |
| tub.series.issuenumber | 2018, 08 | en |
| tub.series.name | Preprint-Reihe des Instituts für Mathematik, Technische Universität Berlin | en |
| tub.subject.msc2000 | 65F10 Iterative methods for linear systems | en |
| tub.subject.msc2000 | 65F15 Eigenvalues, eigenvectors | en |
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