Results 21 to 30 of about 55,994 (213)

Fixed point Ishikawa iterations

open access: yesJournal of Mathematical Analysis and Applications, 1992
If \(J\) is the closed unit inverval, with \(T\) a selfmap of \(J\), the Ishikawa iterates of \(T\) are defined by \(u_{n+1}=[(1-\alpha_ n)u_ n+\alpha_ nT[(1-\beta_ n)u_ n+b_ n Tu_ n]]\) with \(u_ 0\in J\) and \(\{\alpha_ n\}\), \(\{\beta_ n\}\) satisfying the three conditions \[ \text{(a)} \quad 0\leq \alpha_ n\leq \beta_ n\leq 1, \qquad \text{(b ...
Kalinde, Albert K, Rhoades, B.E
openaire   +2 more sources

Abstract Fixed-Point Theorems and Fixed-Point Iterative Schemes

open access: yesSymmetry, 2022
Mathematical methods are extensively used in dealing with simulation and approximation problems related to computer science, engineering, physics, and many others [...]
openaire   +1 more source

Convergence Rate of Some Two-Step Iterative Schemes in Banach Spaces

open access: yesJournal of Mathematics, 2016
This article proves some theorems to approximate fixed point of Zamfirescu operators on normed spaces for some two-step iterative schemes, namely, Picard-Mann iteration, Ishikawa iteration, S-iteration, and Thianwan iteration, with their errors.
O. T. Wahab   +3 more
doaj   +1 more source

Fixed Points by Mean Value Iterations [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
If E is a convex compact subset of a Hilbert space, T is a strictly pseudocontractive function from E into E and x1 is a point in E, then the point sequence {xi})', converges to a fixed point of T, where for each positive integer n, Xn+1 = [11(n + 1)][Tx. + nxj.l In this paper it is shown that a technique of W. R.
openaire   +1 more source

On the Rate of Convergence of P-Iteration, SP-Iteration, and D-Iteration Methods for Continuous Nondecreasing Functions on Closed Intervals

open access: yesAbstract and Applied Analysis, 2018
We introduce a new iterative method called D-iteration to approximate a fixed point of continuous nondecreasing functions on arbitrary closed intervals. The purpose is to improve the rate of convergence compared to previous work.
Jukkrit Daengsaen, Anchalee Khemphet
doaj   +1 more source

A polynomially accelerated fixed-point iteration for vector problems [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics
Fixed-point solvers are ubiquitous in nonlinear PDEs, yet their progress collapses whenever the Jacobian at the solution carries an eigenvalue arbitrarily close to one.
Francesco Alemanno
doaj   +1 more source

Adjoints Of Fixed-Point Iterations

open access: yes, 2014
Adjoint algorithms, and in particular those obtained through the adjoint mode of Automatic Differentiation (AD), are probably the most efficient way to obtain the gradient of a numerical simulation. This however needs to use the ow of data of the original simulation in reverse order, at a cost that increases with the length of the simulation.
Taftaf, Ala   +2 more
openaire   +2 more sources

A generalization of some fixed point theorems of K. M. Ghosh

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
This note establishes the following result. Let T be a selfmap of a normed linear space E.
B. E. Rhoades
doaj   +1 more source

The Fixed Point Property of Strong Pseudocontraction Mapping

open access: yesJournal of Harbin University of Science and Technology, 2020
In this paper, the iterative methods of fixed point of strong pseudocontraction mappings and accretive operators are studied in Banach spaces. A new threestep Ishikawa iteration is given.
CUI Yunan, ZHU Peng, WANG Ping
doaj   +1 more source

The Enhanced Fixed Point Method: An Extremely Simple Procedure to Accelerate the Convergence of the Fixed Point Method to Solve Nonlinear Algebraic Equations

open access: yesMathematics, 2022
This work proposes the Enhanced Fixed Point Method (EFPM) as a straightforward modification to the problem of finding an exact or approximate solution for a linear or nonlinear algebraic equation.
Uriel Filobello-Nino   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy