Results 41 to 50 of about 5,440 (186)

Strong Convergence of Two Iterative Algorithms for Nonexpansive Mappings in Hilbert Spaces

open access: yesFixed Point Theory and Applications, 2009
We introduce two iterative algorithms for nonexpansive mappings in Hilbert spaces. We prove that the proposed algorithms strongly converge to a fixed point of a nonexpansive mapping T.
Yonghong Yao   +2 more
doaj   +2 more sources

A note on strong convergence to common fixed points of nonexpansive mappings in Hilbert spaces [PDF]

open access: yes, 2009
The aim of this paper is to investigate the links between ${\cal T}_C$-class algorithms, CQ Algorithm and shrinking projection methods. We show that strong convergence of these algorithms are related to coherent ${\cal T}_C$-class sequences of mapping ...
Chancelier, Jean-Philippe
core   +3 more sources

Computational Problems in Metric Fixed Point Theory and their Weihrauch Degrees

open access: yes, 2015
We study the computational difficulty of the problem of finding fixed points of nonexpansive mappings in uniformly convex Banach spaces. We show that the fixed point sets of computable nonexpansive self-maps of a nonempty, computably weakly closed ...
Neumann, Eike
core   +1 more source

Convergence theorems for I‐nonexpansive mapping [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We establish the weak convergence of a sequence of Mann iterates of an I‐nonexpansive map in a Banach space which satisfies Opial′s condition.
B. E. Rhoades, Seyit Temir
openaire   +3 more sources

Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups

open access: yesJournal of Mathematical Analysis and Applications, 2003
Let \(C\) be a nonempty closed convex subset of a real Hilbert space and \(T:C\to C\) be a nonexpansive mapping. In the present paper, the authors investigate the sequence \(\{x_n\}\) generated by: \[ \begin{cases} x_0=x\in C,\\ y_n=\alpha_nx_n+ (1-\alpha_n)Tx_n,\;\alpha_n \in [0,a),\;a\in[0,1),\\ C_n=\bigl\{z\in C:\| y_n-z\|\leq\| x_n-z \| \bigr ...
Wataru Takahashi, Kazuhide Nakajo
openaire   +1 more source

Modified Iterative Algorithms for Nonexpansive Mappings [PDF]

open access: yesInternational Journal of Stochastic Analysis, 2009
Let H be a real Hilbert space, let S, T be two nonexpansive mappings such that F(S)∩F(T) ≠ ∅, let f be a contractive mapping, and let A be a strongly positive linear bounded operator on H. In this paper, we suggest and consider the strong converegence analysis of a new two‐step iterative algorithms for finding the approximate solution of two ...
Yao, Yonghong   +2 more
openaire   +2 more sources

A General Dynamic Programming Approach to the Optimal Water Storage Management for Irrigation

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 1987-1997, February 2026.
ABSTRACT This paper proposes a dynamic programming approach targeted to solve a natural resource problem of water storage management for irrigation in an environmentally and socially sustainable way. The problem we address in our formulation, focusing on the control of water storage in tanks, is based on assumptions that are less restrictive than those
Abdelkader Belhenniche   +3 more
wiley   +1 more source

Multivalued Nonexpansive Mappings and Opial's Condition [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
We give relations between a condition introduced by Z. Opial which characterizes weak limits by means of the norm in some Banach spaces and approximations of the identity, in particular for systems of projections. Finally a fixed point theorem for multivalued nonexpansive mappings in a Banach space satisfying this condition is proved; this result ...
openaire   +2 more sources

Some New Fixed Point Results in Banach Space for Enriched Contraction in Terms of Krasnoselskii Iteration

open access: yesComputational and Mathematical Methods, Volume 2026, Issue 1, 2026.
In this article, several new fixed point results are established by employing the Krasnoselskii iteration method for a pair of self‐mappings in Banach spaces. It explores the idea of enriched contraction, conditionally sequential absorbing mappings, and various types of continuity terms. Further, to support our main result, an example is provided which
Priya Goel   +4 more
wiley   +1 more source

Cut-elimination for the modal Grzegorczyk logic via non-well-founded proofs

open access: yes, 2017
We present a sequent calculus for the modal Grzegorczyk logic Grz allowing non-well-founded proofs and obtain the cut-elimination theorem for it by constructing a continuous cut-elimination mapping acting on these proofs.Comment: WOLLIC'17, 12 pages, 1 ...
A Avron   +5 more
core   +1 more source

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