Results 11 to 20 of about 1,200,886 (290)

PHSS Iterative Method for Solving Generalized Lyapunov Equations

open access: yesMathematics, 2019
Based on previous research results, we propose a new preprocessing HSS iteration method (PHSS) for the generalized Lyapunov equation. At the same time, the corresponding inexact PHSS algorithm (IPHSS) is given from the angle of application.
Shi-Yu Li, Hai-Long Shen, Xin-Hui Shao
doaj   +1 more source

A Modified Ren’s Method with Memory Using a Simple Self-Accelerating Parameter

open access: yesMathematics, 2020
In this paper, a self-accelerating type method is proposed for solving nonlinear equations, which is a modified Ren’s method. A simple way is applied to construct a variable self-accelerating parameter of the new method, which does not increase any ...
Xiaofeng Wang, Qiannan Fan
doaj   +1 more source

Approximate k-space models and Deep Learning for fast photoacoustic reconstruction [PDF]

open access: yes, 2018
We present a framework for accelerated iterative reconstructions using a fast and approximate forward model that is based on k-space methods for photoacoustic tomography. The approximate model introduces aliasing artefacts in the gradient information for
Arridge, Simon   +6 more
core   +2 more sources

Collective vibrational states with fast iterative QRPA method [PDF]

open access: yes, 2012
An iterative method we previously proposed to compute nuclear strength functions is developed to allow it to accurately calculate properties of individual nuclear states.
A. Pastore   +7 more
core   +3 more sources

The Four-Parameter PSS Method for Solving the Sylvester Equation

open access: yesMathematics, 2019
In order to solve the Sylvester equations more efficiently, a new four parameters positive and skew-Hermitian splitting (FPPSS) iterative method is proposed in this paper based on the previous research of the positive and skew-Hermitian splitting (PSS ...
Hai-Long Shen, Yan-Ran Li, Xin-Hui Shao
doaj   +1 more source

A generalized iterative scheme with computational results concerning the systems of linear equations

open access: yesAIMS Mathematics, 2023
In this article, a new generalized iterative technique is presented for finding the approximate solution of a system of linear equations Ax=b. The efficiency of iterative technique is analyzed by implementing it on some examples, and then comparing with ...
Kamsing Nonlaopon   +3 more
doaj   +1 more source

A Robust Iterative Unfolding Method for Signal Processing [PDF]

open access: yes, 2006
There is a well-known series expansion (Neumann series) in functional analysis for perturbative inversion of specific operators on Banach spaces. However, operators that appear in signal processing (e.g.
András László   +9 more
core   +1 more source

Weak convergence theorem for a class of split variational inequality problems and applications in a Hilbert space

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we consider the algorithm proposed in recent years by Censor, Gibali and Reich, which solves split variational inequality problem, and Korpelevich’s extragradient method, which solves variational inequality problems. As our main result, we
Ming Tian, Bing-Nan Jiang
doaj   +1 more source

An Improved Algorithm For The Solution of Kepler‘s Equation For An Elliptical Orbit [PDF]

open access: yesEngineering and Technology Journal, 2010
In this paper, a root finding method due to iterative method is used first to thesolution of Kepler's equation for an elliptical orbit. Then the extrapolationtechnique in the form of Aitken D2 - acceleration is applied to improve theconvergence of the ...
Mohammed S. Rasheed
doaj   +1 more source

Iterative Solutions for Low Lying Excited States of a Class of Schroedinger Equation [PDF]

open access: yes, 2006
The convergent iterative procedure for solving the groundstate Schroedinger equation is extended to derive the excitation energy and the wave function of the low-lying excited states. The method is applied to the one-dimensional quartic potential problem.
Friedberg R   +3 more
core   +2 more sources

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