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JOURNALS // Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica // Archive

Bul. Acad. Ştiinţe Repub. Mold. Mat., 2021 Number 1-2, Pages 3–30 (Mi basm545)

An iterative method for solving split minimization problem in Banach space with applications

L. O. Jolaosoa, F. U. Ogbuisiba, O. T. Mewomoa

a School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban, South Africa
b DSI-NRF Center of Excellence i Mathematical and Statistical Sciences (CoE-MaSS), Johannesburg, South Africa

Abstract: The purpose of this paper is to study an approximation method for finding a solution of the split minimization problem which is also a fixed point of a right Bregman strongly nonexpansive mapping in $p$-uniformly convex real Banach spaces which are also uniformly smooth. We introduce a new iterative algorithm with a new choice of stepsize such that its implementation does not require a prior knowledge of the operator norm. Using the Bregman distance technique, we prove a strong convergence theorem for the sequence generated by our algorithm. Further, we applied our result to the approximation of solution of inverse problem arising in signal processing and give a numerical example to show how the sequence values are affected by the number of iterations. Our result in this paper extends and complements many recent results in literature.

Keywords and phrases: split feasibility problems, split minimization problems, proximal operators, fixed point problems, inverse problems, Bregman distance, soft thresholding, Banach spaces.

MSC: 47H06, 47H09, 49J53, 65K10

Received: 21.10.2017

Language: English



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