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22.02.2020 | Original Paper

On the parameter selection in the transformed matrix iteration method

verfasst von: Tahereh Salimi Siahkolaei, Davod Khojasteh Salkuyeh

Erschienen in: Numerical Algorithms | Ausgabe 1/2021

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Abstract

Recently, Axelsson and Salkuyeh in (BIT Numerical Mathematics, 59 (2019) 321–342) proposed the transformed matrix iteration (TMIT) method for solving a certain two-by-two block matrices with square blocks. However, they did not present any formula for the optimal parameter of the method which minimizes the spectral radius of the iteration matrix. In this work, we give an upper bound for the spectral radius of the iteration matrix of the method and then compute the parameter which minimizes this upper bound. Numerical results are presented to demonstrate the theoretical results.

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Metadaten
Titel
On the parameter selection in the transformed matrix iteration method
verfasst von
Tahereh Salimi Siahkolaei
Davod Khojasteh Salkuyeh
Publikationsdatum
22.02.2020
Verlag
Springer US
Erschienen in
Numerical Algorithms / Ausgabe 1/2021
Print ISSN: 1017-1398
Elektronische ISSN: 1572-9265
DOI
https://doi.org/10.1007/s11075-020-00884-y