Results 31 to 40 of about 470,890 (244)

Numerical Processes for Approximating Solutions of Nonlinear Equations

open access: yesAxioms, 2022
In this article, we present generalized conditions of three-step iterative schemes for solving nonlinear equations. The convergence order is shown using Taylor series, but the existence of high-order derivatives is assumed.
Samundra Regmi   +3 more
doaj   +1 more source

SAFA : a semi-asynchronous protocol for fast federated learning with low overhead [PDF]

open access: yes, 2020
Federated learning (FL) has attracted increasing attention as a promising approach to driving a vast number of end devices with artificial intelligence.
He, Ligang   +5 more
core   +2 more sources

Gradient flows and a Trotter--Kato formula of semi-convex functions on CAT(1)-spaces [PDF]

open access: yes, 2016
We generalize the theory of gradient flows of semi-convex functions on CAT(0)-spaces, developed by Mayer and Ambrosio--Gigli--Savar\'e, to CAT(1)-spaces. The key tool is the so-called "commutativity" representing a Riemannian nature of the space, and all
Ohta, Shin-ichi, Pálfia, Miklós
core   +2 more sources

A semi-local convergence theorem for a robust revised Newton’s method

open access: yesComputers & Mathematics with Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Zhengyu, Wu, Xinyuan
openaire   +1 more source

Gaussian semi-parametric estimation of fractional cointegration [PDF]

open access: yes, 2003
We analyse consistent estimation of the memory parameters of a nonstationary fractionally cointegrated vector time series. Assuming that the cointegrating relationship has substantially less memory than the observed series, we show that a multi-variate ...
Velasco, Carlos
core   +3 more sources

Constrained-DFT method for accurate energy level alignment of metal/molecule interfaces [PDF]

open access: yes, 2013
We present a computational scheme for extracting the energy level alignment of a metal/molecule interface, based on constrained density functional theory and local exchange and correlation functionals.
Pemmaraju, C. D.   +4 more
core   +2 more sources

Activity Identification and Local Linear Convergence of Douglas--Rachford/ADMM under Partial Smoothness [PDF]

open access: yes, 2015
Convex optimization has become ubiquitous in most quantitative disciplines of science, including variational image processing. Proximal splitting algorithms are becoming popular to solve such structured convex optimization problems.
A Chambolle   +15 more
core   +2 more sources

On the Ostrowski Method for Solving Equations

open access: yesEuropean Journal of Mathematical Analysis, 2021
In this paper, we revisited the Ostrowski's method for solving Banach space valued equations. We developed a technique  to determine a subset of the original convergence domain and using this new Lipschitz constants derived.
Ioannis K. Argyros   +2 more
doaj   +1 more source

Properties of the solutions of delocalised coagulation and inception problems with outflow boundaries [PDF]

open access: yes, 2015
Well posedness is established for a family of equations modelling particle populations undergoing delocalised coagulation, advection, inflow and outflow in a externally specified velocity field.
Patterson, Robert I. A.
core   +3 more sources

Extended Semi-Local Convergence of Newton's Method using the Center Lipschitz Condition and the Restricted Convergence Domain

open access: yesFundamental Journal of Mathematics and Applications, 2019
The objective of this study is to extend the usage of Newton's method for Banach space valued operators. We use our new idea of restricted convergence domain in combination with the center Lipschitz hypothesis on the Frechet-derivatives where the center is not necessarily the initial point.
IIoannis K Argyros, Santhosh GEORGE
openaire   +2 more sources

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