Choosing the relaxation parameter in sequential block-iterativemethods for linear systems

Authors

TOURAJ NIKAZAD
SHSGHAYEGH HEIDARZADE

Abstract

In this paper we introduce two strategies for picking relaxation parameters to control the semiconvergence behavior of a sequential block-iterative method. A convergence analysis is presented. We also demonstrate the performance of our strategies by examples taken from tomographic imaging.

DOI

10.3906/mat-1503-6

Keywords

Sequential block-iterative methods, Cimmino and CAV iteration, semiconvergence, relaxation parameters, tomographic imaging

First Page

733

Last Page

748

Recommended Citation

NIKAZAD, TOURAJ and HEIDARZADE, SHSGHAYEGH (2017) "Choosing the relaxation parameter in sequential block-iterativemethods for linear systems," Turkish Journal of Mathematics: Vol. 41: No. 3, Article 23. https://doi.org/10.3906/mat-1503-6
Available at: https://journals.tubitak.gov.tr/math/vol41/iss3/23