Results 21 to 30 of about 14,159 (238)

Heavy Ball Restarted CMRH Methods for Linear Systems

Mathematical and Computational Applications, 2018
The restarted CMRH method (changing minimal residual method based on the Hessenberg process) using fewer operations and storage is an alternative method to the restarted generalized minimal residual method (GMRES) method for linear systems.
Zhongming Teng, Xuansheng Wang
doaj   +1 more source

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

Results 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, Yu Chen, Jun Huang, Xiuying Wang, Zhenhua Han, Kai Wu   +5 more
doaj   +1 more source

A Study of at Least Sixth Convergence Order Methods Without or with Memory and Divided Differences for Equations Under Generalized Continuity

Mathematics
Multistep methods typically use Taylor series to attain their convergence order, which necessitates the existence of derivatives not naturally present in the iterative functions. Other issues are the absence of a priori error estimates, information about
Ioannis K. Argyros, Ramandeep Behl, Sattam Alharbi, Abdulaziz Mutlaq Alotaibi   +3 more
doaj   +1 more source

Extension of an Eighth-Order Iterative Technique to Address Non-Linear Problems

Axioms
The convergence order of an iterative method used to solve equations is usually determined by using Taylor series expansions, which in turn require high-order derivatives, which are not necessarily present in the method.
Higinio Ramos, Ioannis K. Argyros, Ramandeep Behl, Hashim Alshehri   +3 more
doaj   +1 more source

Semi-Local Convergence of a Seventh Order Method with One Parameter for Solving Non-Linear Equations

Foundations, 2022
The semi-local convergence is presented for a one parameter seventh order method to obtain solutions of Banach space valued nonlinear models. Existing works utilized hypotheses up to the eighth derivative to prove the local convergence.
Christopher I. Argyros, Ioannis K. Argyros, Samundra Regmi, Jinny Ann John, Jayakumar Jayaraman   +4 more
doaj   +1 more source

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

Transactions of A. Razmadze Mathematical Institute, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gelashvili, Koba, Khutsishvili, Irina, Gorgadze, Luka, Alkhazishvili, Lela   +3 more
openaire   +1 more source

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

Journal 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, Muhammad Ridho Rosa, Edwin Muhammad Puji Syamsudin, Bambang Riyanto Trilaksono, Agung Surya Wibowo   +4 more
doaj   +1 more source

On the fast convergence of minibatch heavy ball momentum

IMA 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, Tyler Chen, Rachel A. Ward   +2 more
openaire   +2 more sources

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

FEBS 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, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

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

Abstract 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