Results 41 to 50 of about 16,081 (276)

On Newton's method for subanalytic equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2017
We present local and semilocal convergence results for Newton’s method in order to approximate solutions of subanalytic equations. The local convergence results are given under weaker conditions than in earlier studies such as [9], [10], [14], [15], [24]
Ioannis K. Argyros, Santhosh George
doaj   +2 more sources

Local convergence for multi-point-parametric Chebyshev-Halley-type methods of high convergence order

open access: yes, 2015
We present a local convergence analysis for general multi-point-Chebyshev-Halley-type methods (MMCHTM) of high convergence order in order to approximate a solution of an equation in a Banach space setting.
George, Santhosh   +2 more
core   +1 more source

A multiphase flow study for lubrication characteristics on the internal flow pattern of ball bearing

open access: yesResults in Engineering, 2023
This work proposes a general method for establishing the lubrication analysis model of ball bearing and the oil-air multiphase flow characteristics inside ball bearing is revealed by CFD. Based on the geometric feature, the micro-clearance in the chamber
Wentao Shan   +5 more
doaj   +1 more source

Speeding up the convergence of the Polyak’s Heavy Ball algorithm

open access: yesTransactions of A. Razmadze Mathematical Institute, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gelashvili, Koba   +3 more
openaire   +1 more source

Convergence Behavior for Newton-Steffensen’s Method under -Condition of Second Derivative

open access: yesAbstract and Applied Analysis, 2013
The present paper is concerned with the semilocal as well as the local convergence problems of Newton-Steffensen’s method to solve nonlinear operator equations in Banach spaces.
Yonghui Ling, Xiubin Xu, Shaohua Yu
doaj   +1 more source

On the convergence of adaptive nonconforming finite element methods for a class of convex variational problems [PDF]

open access: yes, 2011
We formulate and analyze an adaptive nonconforming finite element method for the solution of convex variational problems. The class of minimization problems we admit includes highly singular problems for which no Euler–Lagrange equation (or inequality ...
Christoph Ortner   +3 more
core   +1 more source

Design and application of models reference adaptive control (MRAC) on ball and beam

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2022
This paper presents the implementation of an adaptive control approach to the ball and beam system (BBS). The dynamics of a BBS are non-linear, and in the implementation, the uncertainty of the system's parameters may occur.
Muhammad Zakiyullah Romdlony   +4 more
doaj   +1 more source

On the fast convergence of minibatch heavy ball momentum

open access: yesIMA Journal of Numerical Analysis
Abstract Simple stochastic momentum methods are widely used in machine learning optimization, but their good practical performance is at odds with an absence of theoretical guarantees of acceleration in the literature. In this work, we aim to close the gap between theory and practice by showing that stochastic heavy ball momentum retains
Raghu Bollapragada   +2 more
openaire   +2 more sources

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Local Convergence of Jarratt-Type Methods with Less Computation of Inversion Under Weak Conditions

open access: yesMathematical Modelling and Analysis, 2017
We present a local convergence analysis for Jarratt-type methods in order to approximate a solution of a nonlinear equation in a Banach space setting. Earlier studies cannot be used to solve equations using such methods.
Ioannis K. Argyros, Santhosh George
doaj   +1 more source

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