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- Title
Asymptotically α-hemicontractive mappings in Hilbert spaces and a new algorithm for solving associated split common fixed point problem.
- Authors
ONAH, A. C.; OSILIKE, M. O.; NWOKORO, P. U.; ONAH, J. N.; CHIMA, E. E.; OGUGUO, O. U.
- Abstract
We introduce a novel class of asymptotically α-hemicontractive mappings and demonstrate its relationship with the existing related families of mappings. We establish certain interesting properties of the fixed point set of the new class of mappings. Furthermore, we propose and investigate a new iterative algorithm for solving split common fixed point problem for the new class of mappings. In particular, weak and strong convergence theorems for solving split common fixed point problem for our new class of mappings in Hilbert spaces are proved. Moreover, using our method, we require no prior knowledge of norm of the transfer operator. The results presented in the paper extend and improve the results of Censor and Segal [Censor, Y.; Segal, A. The split common fixed point problem for directed operators. J. Convex Anal. 16 (2009), no. 2, 587-600.], Moudafi [Moudafi, A. The split common fixed-point problem for demicontractive mappings. Inverse Problems 26 (2010), no. 5:055007.; Moudafi, A. A note on the split common fixed-point problem for quasi-nonexpansive operators. Nonlinear Anal. 74 (2011), no. 12, 4083-4087.], Chima and Osilike [Chima, E. E.; Osilike, M. O. Split common fixed point problem for class of asymptotically hemicontractive mappings. J. Nigerian Math. Soc. 38 (2019), no. 3, 363-390.], Fan et al [Fan, Q.; Peng, J.; He, H. Weak and strong convergence theorems for the split common fixed point problem with demicontractive operators. Optimization 70 (2021), no. 5-6, 1409-1423.] and host of other related results in literature.
- Subjects
NONEXPANSIVE mappings; HILBERT space; INVERSE problems; POINT set theory; KNOWLEDGE transfer; ALGORITHMS
- Publication
Carpathian Journal of Mathematics, 2024, Vol 40, Issue 3, p691
- ISSN
1584-2851
- Publication type
Article
- DOI
10.37193/CJM.2024.03.10