Research Article

APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES

Volume: 16 Number: 3 March 17, 2026

APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES

Abstract

This paper investigates the convergence of an iterative process to a fixed point of nonexpansive mappings in uniformly convex hyperbolic spaces. First, we analyze the iteration scheme introduced by Karakaya et al. for such mappings, establishing its key properties. Under specific conditions, we prove both $\Delta-$convergence and strong convergence of the iteration to a fixed point. Additionally, we show that, if the iteration $\Delta-$converges or strongly converges to a fixed point, then every subsequence exhibits the same behavior. These results extend the theory of iterative methods to uniformly convex hyperbolic spaces, broadening their applicability in nonlinear functional analysis.

Keywords

References

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  2. Göhde, D., (1965), Zum Prinzip der kontraktiven abildung, Math. Nachr., 30(3-4), pp. 251–258.
  3. Kirk, W. A., (1965), A Fixed point theorem for mapping which do not increase distance, Amer. Math. Monthly, 72(9), pp. 1004–1006.
  4. Khan, A. R., Fukharuddin, H., and Khan, M. A. A., (2012), An implicit algorithm for two finite families of nonexpansive maps in hyperbolic space, J. Fixed Point Theory Appl., 54. https://doi.org/10.1186/1687-1812-2012-54.
  5. Karakaya, V., Atalan, Y., Dogan, K., and Bouzara, N. E. H., (2017), Some fixed point results for a new three steps iteration process in Banach spaces, Fixed Point Theory, 18, pp. 625–640.
  6. Atalan, Y. and Karakaya, V., (2019), Investigation of some fixed point theorems in hyperbolic spaces for a three steps iteration process, Korean J. Math., 27(4), pp. 929–947.
  7. Kohlenbach, U., (2004), Some logical methatheorem with applications in functional analysis, Trans. Amer. Math. Soc., 534, pp. 89–128.
  8. Reich, S. and Shafrir, I., (1990), Nonexpansive iterations in hyperbolic spaces, Nonlinear Anal., 15, pp. 537–558.

Details

Primary Language

English

Subjects

Operator Algebras and Functional Analysis

Journal Section

Research Article

Publication Date

March 17, 2026

Submission Date

November 9, 2024

Acceptance Date

August 30, 2025

Published in Issue

Year 2026 Volume: 16 Number: 3

APA
Arfah, A. (2026). APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES. TWMS Journal of Applied and Engineering Mathematics, 16(3), 305-318. https://izlik.org/JA24XF42DM
AMA
1.Arfah A. APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES. JAEM. 2026;16(3):305-318. https://izlik.org/JA24XF42DM
Chicago
Arfah, Arfah. 2026. “APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES”. TWMS Journal of Applied and Engineering Mathematics 16 (3): 305-18. https://izlik.org/JA24XF42DM.
EndNote
Arfah A (March 1, 2026) APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES. TWMS Journal of Applied and Engineering Mathematics 16 3 305–318.
IEEE
[1]A. Arfah, “APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES”, JAEM, vol. 16, no. 3, pp. 305–318, Mar. 2026, [Online]. Available: https://izlik.org/JA24XF42DM
ISNAD
Arfah, Arfah. “APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES”. TWMS Journal of Applied and Engineering Mathematics 16/3 (March 1, 2026): 305-318. https://izlik.org/JA24XF42DM.
JAMA
1.Arfah A. APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES. JAEM. 2026;16:305–318.
MLA
Arfah, Arfah. “APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES”. TWMS Journal of Applied and Engineering Mathematics, vol. 16, no. 3, Mar. 2026, pp. 305-18, https://izlik.org/JA24XF42DM.
Vancouver
1.Arfah Arfah. APPROXIMATING FIXED POINTS OF NONEXPANSIVE MAPPINGS IN UNIFORMLY CONVEX HYPERBOLIC SPACES. JAEM [Internet]. 2026 Mar. 1;16(3):305-18. Available from: https://izlik.org/JA24XF42DM