Results 21 to 30 of about 17,217 (243)

Chebyshev Polynomial Iterations and Approximate Solutions of Linear Operator Equations

open access: bronzeZeitschrift für Analysis und ihre Anwendungen, 1994
An iteration scheme for the approximate solution of a linear operator equation in a Banach space is discussed from the viewpoint of Chebyshev polynomials. The optimal rate of convergence is described by numerical characteristics which are similar to (but different from) the classical Chebyshev constants.
A.P. Zabrejko, Petr P. Zabrejko
openalex   +5 more sources

Dynamic multi‐objective optimisation of complex networks based on evolutionary computation

open access: yesIET Networks, EarlyView., 2022
Abstract As the problems concerning the number of information to be optimised is increasing, the optimisation level is getting higher, the target information is more diversified, and the algorithms are becoming more complex; the traditional algorithms such as particle swarm and differential evolution are far from being able to deal with this situation ...
Linfeng Huang
wiley   +1 more source

New approach on conventional solutions to nonlinear partial differential equations describing physical phenomena

open access: yesResults in Physics, 2022
In current study, the modified variational iteration algorithm-I is investigated in the form of the analytical and numerical treatment of different types of nonlinear partial differential equations modelling physical phenomena where particles, energy, or
Hijaz Ahmad   +4 more
doaj   +1 more source

Chebyshev iteration for the problem with nonlocal boundary condition

open access: yesLietuvos Matematikos Rinkinys, 2004
We considered Poisson differential equation with Dirichlet boundary conditions and one nonlocal boundary condition. Finite-difference scheme was investigated for this problem.
Mifodijus Sapagovas   +2 more
doaj   +3 more sources

Fast matrix inversion based on Chebyshev acceleration for linear detection in massive MIMO systems

open access: yesElectronics Letters, 2022
To circumvent the prohibitive complexity of linear minimum mean square error detection in a massive multiple‐input multiple‐output system, several iterative methods have been proposed.
Salah Berra   +2 more
doaj   +1 more source

ON COMPARISONS OF CHEBYSHEV-HALLEY ITERATION FUNCTIONS BASED ON THEIR ASYMPTOTIC CONSTANTS [PDF]

open access: bronzeInternational Journal of Pure and Apllied Mathematics, 2013
Using the Chebyshev-Halley family of iteration functions and numerical examples, we discuss the influence of both the asymptotic constant and the choice of the initial trial in the basin of attraction on the rapidity of convergence of an iterative method.
François Dubeau
openalex   +2 more sources

ON THE STABILITY OF THE CHEBYSHEV ITERATIVE METHOD

open access: yesDYNAMICS OF SYSTEMS, MECHANISMS AND MACHINES, 2023
Numerical solution of the systems of linear equations (linear system), especially in case of nonstationary problems, takes a significant part of computer time. Normally, for solving linear system the applied program packages use either Chebyshev iterative method (wave linear problems etc.), which requires setting the optimal parameter, or gradient ...
Y. N. Zakharov, A. I. Zimin
openaire   +1 more source

Parallel Self-Consistent-Field Calculations via Chebyshev-Filtered Subspace Acceleration [PDF]

open access: yes, 2006
Solving the Kohn-Sham eigenvalue problem constitutes the most computationally expensive part in self-consistent density functional theory (DFT) calculations.
B. Fornberg   +10 more
core   +1 more source

Low-rank Linear Fluid-structure Interaction Discretizations [PDF]

open access: yes, 2020
Fluid-structure interaction models involve parameters that describe the solid and the fluid behavior. In simulations, there often is a need to vary these parameters to examine the behavior of a fluid-structure interaction model for different solids and ...
Benner, Peter   +2 more
core   +2 more sources

A numerically stable high-order Chebyshev-Halley type multipoint iterative method for calculating matrix sign function

open access: yesAIMS Mathematics, 2023
A new eighth-order Chebyshev-Halley type iteration is proposed for solving nonlinear equations and matrix sign function. Basins of attraction show that several special cases of the new method are globally convergent.
Xiaofeng Wang , Ying Cao
doaj   +1 more source

Home - About - Disclaimer - Privacy