Results 21 to 30 of about 30,178,222 (369)

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

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

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 iterative transformation method [PDF]

open access: yesInternational Journal of Non-Linear Mechanics, 2019
In a transformation method, the numerical solution of a given boundary value problem is obtained by solving one or more related initial value problems. Therefore, a transformation method, like a shooting method, is an initial value method. The main difference between a transformation and a shooting method is that the former is conceived and derive its ...
openaire   +3 more sources

Convergence of Iterative Methods [PDF]

open access: yesProgress of Theoretical Physics, 1953
For various iterative methods in eigenvalue problem which are used to solve the bound states and scattering problems, we introduce the coefficient of convergency which ·indicates not only the convergency condition when the iteration is performed endlessly, but also the efficiency of successive approximation for· any finite step.
openaire   +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

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

An Iterative Method for Moving Target Localization Using TDOA and FDOA Measurements

open access: yesIEEE Access, 2018
For moving targets localization, incorporating frequency-difference-of-arrival (FDOA) measurements in the commonly used time-difference-of-arrival (TDOA) positioning systems will improve performance.
Yanbin Zou, Huaping Liu, Q. Wan
semanticscholar   +1 more source

Some new numerical schemes for finding the solutions to nonlinear equations

open access: yesAIMS Mathematics, 2022
We introduce a sequence of third and fourth-order iterative schemes for finding the roots of nonlinear equations by using the decomposition technique and Simpson's one-third rule.
Awais Gul Khan   +3 more
doaj   +1 more source

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