Results 31 to 40 of about 2,131 (145)

A simultaneous iterative method for split equality problems of two finitefamilies of strictly pseudononspreading mappings without prior knowledge ofoperator norms

open access: yes, 2015
In this article, we first introduce the concept of T-mapping of a finitefamily of strictly pseudononspreading mapping , and we show that the fixed point set of theT-mapping is the set of common fixed points of and T is a quasi-nonexpansive mapping.Based ...
Hai-tao Che, Mei-xia Li
semanticscholar   +1 more source

Convergence analysis of an iterative algorithm for monotone operators

open access: yesJournal of Inequalities and Applications, 2013
In this paper, an iterative algorithm is proposed to study some nonlinear operators which are inverse-strongly monotone, maximal monotone, and strictly pseudocontractive. Strong convergence of the proposed iterative algorithm is obtained in the framework
S. Cho, Wenling Li, S. Kang
semanticscholar   +1 more source

A weak ergodic theorem for infinite products of Lipschitzian mappings

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 2, Page 67-74, 2003., 2003
Let K be a bounded, closed, and convex subset of a Banach space. For a Lipschitzian self‐mapping A of K, we denote by Lip(A) its Lipschitz constant. In this paper, we establish a convergence property of infinite products of Lipschitzian self‐mappings of K.
Simeon Reich, Alexander J. Zaslavski
wiley   +1 more source

Generalized split null point of sum of monotone operators in Hilbert spaces

open access: yesDemonstratio Mathematica, 2021
In this paper, we introduce a new type of a generalized split monotone variational inclusion (GSMVI) problem in the framework of real Hilbert spaces. By incorporating an inertial extrapolation method and an Halpern iterative technique, we establish a ...
Mebawondu Akindele A.   +4 more
doaj   +1 more source

Tensor Complementarity Problem and Semi-positive Tensors

open access: yes, 2015
The tensor complementarity problem $(\q, \mathcal{A})$ is to $$\mbox{ find } \x \in \mathbb{R}^n\mbox{ such that }\x \geq \0, \q + \mathcal{A}\x^{m-1} \geq \0, \mbox{ and }\x^\top (\q + \mathcal{A}\x^{m-1}) = 0.$$ We prove that a real tensor $\mathcal ...
Qi, Liqun, Song, Yisheng
core   +1 more source

A remark on the approximate fixed‐point property

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 2, Page 93-99, 2003., 2003
We give an example of an unbounded, convex, and closed set C in the Hilbert space l2 with the following two properties: (i) C has the approximate fixed‐point property for nonexpansive mappings, (ii) C is not contained in a block for every orthogonal basis in l2.
Tadeusz Kuczumow
wiley   +1 more source

On the order of the operators in the Douglas-Rachford algorithm

open access: yes, 2015
The Douglas-Rachford algorithm is a popular method for finding zeros of sums of monotone operators. By its definition, the Douglas-Rachford operator is not symmetric with respect to the order of the two operators.
Bauschke, Heinz H., Moursi, Walaa M.
core   +1 more source

An implicit algorithm for two finite families of nonexpansive maps in hyperbolic spaces

open access: yes, 2012
In this article, we propose and analyze an implicit algorithm for two finite families of nonexpansive maps in hyperbolic spaces. Results concerning Δ-convergence as well as strong convergence of the proposed algorithm are proved.
A. Khan   +2 more
semanticscholar   +1 more source

Mann iterates of directionally nonexpansive mappings in hyperbolic spaces

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 8, Page 449-477, 2003., 2003
In a previous paper, the first author derived an explicit quantitative version of a theorem due to Borwein, Reich, and Shafrir on the asymptotic behaviour of Mann iterations of nonexpansive mappings of convex sets C in normed linear spaces. This quantitative version, which was obtained by a logical analysis of the ineffective proof given by Borwein ...
Ulrich Kohlenbach, Laurenţiu Leuştean
wiley   +1 more source

A look at nonexpansive mappings in non-Archimedean vector spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
In a spherically complete ultrametric space every nonexpansive self-mapping T has a fixed point ̄x or a minimal invariant ball B(̄x, d(̄x, T(̄x)). We show how we can approximate this fixed center ̄x in a non-Archimedean vector space.
Lazaiz Samih
doaj   +1 more source

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