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, T, & HEIDARZADE, S (2017). Choosing the relaxation parameter in sequential block-iterativemethods for linear systems. Turkish Journal of Mathematics 41 (3): 733-748. https://doi.org/10.3906/mat-1503-6