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ЖУРНАЛЫ // Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica // Архив

Bul. Acad. Ştiinţe Repub. Mold. Mat., 2021, номер 1-2, страницы 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

Аннотация: 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.

Ключевые слова и фразы: split feasibility problems, split minimization problems, proximal operators, fixed point problems, inverse problems, Bregman distance, soft thresholding, Banach spaces.

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

Поступила в редакцию: 21.10.2017

Язык публикации: английский



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