Department of Mathematics, Enugu State University of Science and Technology, Enugu, Enugu State, Nigeria.
World Journal of Advanced Research and Reviews, 2025, 27(02), 1564-1570
Article DOI: 10.30574/wjarr.2025.27.2.2987
Received on 09 July 2025; revised on 19 August; accepted on 22 August 2025
We introduce and study a new class of mapping in Banach Spaces, termed (α , β,γ) - supper hybrid mappings, which generalize the well – known ( α , β ) - generalized hybrid mappings. This extended framework encompasses a broader spectrum of nonlinear of nonlinear operators and allows for refined control via an additional parameter γ ≥ 0. We establish several foundational properties of supper hybrid mappings, including quasi – nonexpansivenes and the demiclosedness principle at zero. Furthermore, we prove a nonlinear ergodic theorem of Baillon’s type in Hilbert spaces for supper hybrid mappings, demonstrated weak convergence of the Cesàro means to a fixed point. Our approach leverages metric projections and techniques inspired by Takahashi, thereby extending classical fixed point theory to this new operator class.
Supper hybrid mapping; Nonlinear ergodic theorem; Quasi – nonexpansive mapping; Fixed point; Banach space; Demiclosedness principle; Cesàro mean; Weak convergence
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Ikechukwu Godwin Ezugorie. Demiclosedness and weak convergence of supper hybrid mappings in Banach spaces. World Journal of Advanced Research and Reviews, 2025, 27(2), 1564-1570. Article DOI: https://doi.org/10.30574/wjarr.2025.27.2.2987