Results 21 to 30 of about 1,182 (205)

Convergence and stability of variable-stepsize variable-formula multistep multiderivative methods [PDF]

open access: yes, 2018
During the numerical integration of a system of first order differential equations, practical algorithms which use linear multistep formulas try to keep the estimated local truncation error smaller than a user-supplied tolerance. This is usually achieved by allowing for changes in the stepsize and/or the formula being used.
Buls, Gary
openaire   +4 more sources

Variable stepsize störmer-cowell methods

open access: yesMathematical and Computer Modelling, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Higinio Ramos, Jesús Vigo-Aguiar
openaire   +1 more source

New generalized variable stepsizes of the CQ algorithm for solving the split feasibility problem

open access: yesJournal of Inequalities and Applications, 2017
Variable stepsize methods are effective for various modified CQ algorithms to solve the split feasibility problem (SFP). The purpose of this paper is first to introduce two new simpler variable stepsizes of the CQ algorithm.
Peiyuan Wang   +3 more
doaj   +1 more source

Adaptive stepsize based on control theory for stochastic differential equations [PDF]

open access: yes, 2004
The numerical solution of stochastic differential equations (SDEs) has been focussed recently on the development of numerical methods with good stability and order properties.
Burrage, P.M.   +4 more
core   +1 more source

A Variable Step-size CLMS Algorithm and Its Analysis [PDF]

open access: yesRadioengineering, 2020
In this paper, a hyperbolic tangent variable step-size convex combination of the least mean square (HTVSCLMS) algorithm is proposed and analyzed. This work avoids the compromise between the convergence speed and the steady-state error for two filters in ...
X. Fan, Z. Tan, P. Song, L. Chen
doaj  

Variable stepsize variable order multistep methods for stiff ordinary differential equations [PDF]

open access: yes, 1985
Backward differentiation methods are used extensively for integration of stiff systems of ordinary differential equations. During the integration, the steplength and order are controlled so that the estimated local error is less than some user prescribed
Vijitha-Kumara, Kanaka
core   +1 more source

Symplectic difference systems: variable stepsize discretization and discrete quadratic functionals [PDF]

open access: yes, 2003
Discrete quadratic functionals with variable endpoints for variable stepsize symplectic difference systems are considered. A comprehensive study is presented for characterizing the positivity of such functionals in terms of conjugate intervals, conjoined
Hilscher, Roman, Zeidan, Vera
core   +1 more source

An efficient variable stepsize rational method for stiff, singular and singularly perturbed problems

open access: yesAlexandria Engineering Journal, 2022
In this article, a new iterative method of the rational type having fifth-order of accuracy is proposed to solve initial value problems. The method is self-starting, stable, consistent, and convergent, whereas local truncation error analysis has also ...
Sania Qureshi   +5 more
doaj   +1 more source

Almost sure stability of the Euler-Maruyama method with random variable stepsize for stochastic differential equations [PDF]

open access: yes, 2016
In this paper, the Euler–Maruyama (EM) method with random variable stepsize is studied to reproduce the almost sure stability of the true solutions of stochastic differential equations.
Liu, Wei, Mao, Xuerong
core   +1 more source

Long-term stability of variable stepsize approximations of semigroups [PDF]

open access: yesMathematics of Computation, 2001
This paper is concerned with the stability of rational one-step approximations of C 0 C_0
Nikolai Bakaev, Alexander Ostermann
openaire   +2 more sources

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