Results 11 to 20 of about 3,848 (206)

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 ...
Kazuhide Nakajo
exaly   +3 more sources

On the Fixed-Point Set of a Family of Relatively Nonexpansive and Generalized Nonexpansive Mappings

open access: yesFixed Point Theory and Applications, 2010
We prove that the set of common fixed points of a given countable family of relatively nonexpansive mappings is identical to the fixed-point set of a single strongly relatively nonexpansive mapping.
Saejung Satit, Nilsrakoo Weerayuth
doaj   +4 more sources

New Construction of Strongly Relatively Nonexpansive Sequences by Firmly Nonexpansive-Like Mappings

open access: yesMathematics, 2020
In recent works, many authors generated strongly relatively nonexpansive sequences of mappings by the sequences of firmly nonexpansive-like mappings. In this paper, we introduce a new method for construction of strongly relatively nonexpansive sequences ...
Hüseyin Işık   +4 more
doaj   +2 more sources

On the Weak Relatively Nonexpansive Mappings in Banach Spaces [PDF]

open access: yesFixed Point Theory and Applications, 2010
In recent years, the definition of weak relatively nonexpansive mapping has been presented and studied by many authors. In this paper, we give some results about weak relatively nonexpansive mappings and give two examples which are weak relatively ...
Yongfu Su, Yongchun Xu
doaj   +4 more sources

Convergence of Generalized Quasi-Nonexpansive Mappings in Hyperbolic Space

open access: yesJournal of Function Spaces, 2022
In this article, we consider a wider class of nonexpansive mappings (locally related quasi-nonexpansive) than monotone nonexpansive mappings. We obtained the convergence of fixed point for quasi ϱ-preserving locally related quasi-nonexpansive mappings in
Naeem Saleem   +3 more
doaj   +2 more sources

Iterated nonexpansive mappings [PDF]

open access: yesJournal of Fixed Point Theory and Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tomás Domínguez Benavides   +1 more
core   +4 more sources

On nonexpansive mappings [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
A generalized Hilbert space property is used to analyze nonexpansive mappings in certain settings. In particular it is shown that in l 1
L A. Karlovitz
openaire   +3 more sources

On Multivalued Nonexpansive Mappings in ℝ‐Trees [PDF]

open access: yesJournal of Applied Mathematics, 2012
The relationships between nonexpansive, weakly nonexpansive, *‐nonexpansive, proximally nonexpansive, proximally continuous, almost lower semicontinuous, and ɛ‐semicontinuous mappings in ℝ‐trees are studied. Convergence theorems for the Ishikawa iteration processes are also discussed.
Samanmit, K., Panyanak, B.
openaire   +4 more sources

On the Weak Relatively Nonexpansive Multivalued Mappings in Banach Spaces [PDF]

open access: yesAbstract and Applied Analysis, 2012
In recent years, the definition of relatively nonexpansive multivalued mapping and the definition of weak relatively nonexpansive multivalued mapping have been presented and studied by many authors.
Yongfu Su
doaj   +2 more sources

Common fixed points for nonexpansive type fuzzy mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
In this paper we define g-nonexpansive and g-nonexpansive type fuzzy mappings and prove common fixed point theorems for sequences of fuzzy mappings satisfying certain conditions on a Banach space. Thus we obtain fixed point theorems for nonexpansive type
Byung Soo Lee   +3 more
doaj   +2 more sources

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