Weak and strong convergence adaptive algorithms for generalized split common fixed point problems. (9th December 2022)

• Record Type: Journal Article
• Authors: Gebrie, Anteneh Getachew
• Is Part Of: Optimization. Volume 71:Number 13(2022)
• Page Start: 3711
• Page End: 3736
• Publication Date: 2022-12-09
• Subjects: Split common fixed-point problem -- self-adaptive method -- κ-demimetric mapping -- weak convergence -- strong convergence; Mathematical optimization -- Periodicals; 519.7
• DOI: 10.1080/02331934.2021.1913156
• Languages: English
• ISSNs: 0233-1934

Abstract

Abstract : In this work, we establish two new self-adaptive parallel algorithms to solve the generalized split common fixed point problem which is to find a point which belongs to the intersection of finite family of fixed point sets of demimetric mappings such that its image under a finite number of linear transformations belongs to the intersection of another finite family of fixed point sets of demimetric mappings in the image space. Under suitable assumptions, the weak and strong convergence theorems are analysed. The obtained results generalize and improve the recent results announced by many other authors in the framework of split inverse problem. As a direct consequence of our two main algorithms, we obtain several new algorithms. Preliminary numerical experiments are provided to illustrate the efficiency and implementation of our new methods and also to compare with others.