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JOURNALS // Sibirskii Zhurnal Vychislitel'noi Matematiki // Archive

Sib. Zh. Vychisl. Mat., 2023 Volume 26, Number 2, Pages 115–134 (Mi sjvm833)

An implicit iteration method for solving linear ill-posed operator equations

T. Bechouat

Department of Mathematics and Informatics, Mohammed Cherif Messaadia University, Faculty of Science and Technology, Souk Ahras, 41000, P.O.Box 1553, Algeria

Abstract: In this work, we study a new implicit method to compute the solutions of ill-posed linear operator equations of the first kind under the setting of compact operators. The regularization theory can be used to demonstrate the stability and convergence of this scheme. Furthermore, we obtain convergence results and effective stopping criteria according to Morozov's discrepancy principle. Numerical performances are calculated to show the validity of our implicit method and demonstrate its applicability to deblurring problems.

Key words: ill-posed problem, operator equation of first kind, iterative regularization, image deblurring.

MSC: 47A52, 65R30

Received: 21.10.2022
Revised: 09.11.2022
Accepted: 30.01.2023

DOI: 10.15372/SJNM20230201



© Steklov Math. Inst. of RAS, 2024