Choosing the relaxation parameter in sequential block-iterative methods for linear systems

Authors : Touraj Nikazad, Shsghayegh Heidarzade

Pages : 733-748

View : 14 | Download : 8

Publication Date : 9999-12-31

Article Type : Makaleler

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