Results 311 to 320 of about 4,149,754 (381)
Some of the next articles are maybe not open access.

Parallel Iterative Methods for Solving the Split Common Fixed Point Problem in Hilbert Spaces

Numerical Functional Analysis and Optimization, 2019
We introduce three new parallel algorithms for solving the split common fixed point problem in Hilbert spaces. Those iterative methods for solving split common fixed point problems which involve step sizes that depend on the norm of a given bounded ...
S. Reich   +2 more
semanticscholar   +1 more source

Approximating a Zero of Sum of Two Monotone Operators Which Solves a Fixed Point Problem in Reflexive Banach Spaces

Numerical Functional Analysis and Optimization, 2019
The purpose of this paper is to introduce an iterative method for approximating a point in the set of zeros of the sum of two monotone mappings, which is also a solution of a fixed point problem for a Bregman strongly nonexpansive mapping in a real ...
F. Ogbuisi, C. Izuchukwu
semanticscholar   +1 more source

Iterative methods for the split feasibility problem and the fixed point problem in Banach spaces

Optimization, 2019
In this work, we suggest modifications of the self-adaptive method for solving the split feasibility problem and the fixed point problem of nonexpansive mappings in the framework of Banach spaces.
S. Suantai   +3 more
semanticscholar   +1 more source

Well-posedness of fixed point problems [PDF]

open access: possibleJournal of Fixed Point Theory and Applications, 2018
We state conditions for well-posedness of a fixed point problem for single and multivalued operators, where these operators are deterministic or random. These results are applied to families of different generalized contractions.
Mantu Saha   +3 more
openaire   +1 more source

The Split Equality Fixed Point Problem for Quasi-Pseudo-Contractive Mappings Without Prior Knowledge of Norms

Numerical Functional Analysis and Optimization, 2019
Recently, Chang et al. (2015) constructed an algorithm that converges weakly to the solution of the split equality fixed point problem for quasi-pseudo-contractive mappings under some suitable conditions.
O. A. Boikanyo, H. Zegeye
semanticscholar   +1 more source

Interval methods for fixed-point problems [PDF]

open access: possibleNumerical Functional Analysis and Optimization, 1987
Interval analysis is applied to the fixed-point problem x=ϕ(x) for continuous ϕ:S→S, where the space S is constructed from Cartesian products of the set R of real numbers, with componentwise definitions of arithmetic operations, ordering, and the product topology. With the aid of an interval inclusion φ:IS → IS in the interval space IS corresponding to
openaire   +1 more source

Weak and Strong Convergence Theorems for New Demimetric Mappings and the Split Common Fixed Point Problem in Banach Spaces

Numerical Functional Analysis and Optimization, 2018
In this paper, we consider the split common fixed point problem for new demimetric mappings in Banach spaces. Using the idea of Mann’s iteration, we prove a weak convergence theorem for finding a solution of the split common fixed point problem in Banach
W. Takahashi
semanticscholar   +1 more source

Weak and Strong Convergence of Two Algorithms for the Split Fixed Point Problem

Numerical Mathematics: Theory, Methods and Applications, 2018
Two iterative algorithms are proposed for the split fixed point problem. The first algorithm is shown to be weakly convergent and the second one to be strongly convergent.
Feng Xu
semanticscholar   +1 more source

Koenigs problem and extreme fixed points

Functional Analysis and Its Applications, 2010
This note continues some previous studies by the authors. We consider a linear-fractional mapping \( F_A :K \to K \) generated by a triangular operator, where \( K \) is the unit operator ball and the fixed point C of the extension of \( F_A \) to \( \overline K \) is either an isometry or a coisometry.
V. A. Senderov, V. A. Khatskevich
openaire   +2 more sources

A fuzzy fixed point problem for constraint inequalities

Journal of Intelligent & Fuzzy Systems, 2020
In this work, we prove a new fixed point theorem in the setting fuzzy metric spaces. The fuzzy metric space considered here is assumed to have two partial orders defined on it. We introduce a new approach to the existence of a fixed point of a function satisfying the two constraint inequalities.
Hüseyin Işık   +2 more
openaire   +4 more sources

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