A class of parameter choice strategies for the finite dimensional iterated weighted Tikhonov regularization scheme

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A class of parameter choice strategies for the finite dimensional iterated weighted Tikhonov regularization scheme

Year : 2025

Publisher : Springer

Source Title : Numerical Algorithms

Document Type :

Abstract

Recently, Reddy and Pradeep (2023) have proposed a class of parameter choice strategies to choose the regularization parameter for the finite dimensional weighted Tikhonov regularization scheme. In this article, we explore the iterated weighted Tikhonov scheme in the finite dimensional context, discuss its convergence analysis and propose a class of parameter choice strategies to choose the regularization parameter. Furthermore we establish optimal rate of convergence as Oδj(α+1)j(α+1)+1 based on the proposed strategies. The scheme’s performance is illustrated through numerical experiments with an efficient finite dimensional approximation of an operator.