Results 21 to 30 of about 6,208 (302)

An Analysis of the Theta-Method for Pantograph-Type Delay Differential Equations

open access: yesComplexity, 2022
The pantograph equation arises in electrodynamics as a delay differential equation (DDE). In this article, we provide the ϑ-method for numerical solutions of pantograph equations. We investigate the stability conditions for the numerical schemes.
Fathalla A. Rihan, Ahmed F. Rihan
doaj   +1 more source

A Class of Hybrid Multistep Block Methods with A–Stability for the Numerical Solution of Stiff Ordinary Differential Equations

open access: yesMathematics, 2020
Recently, block backward differentiation formulas (BBDFs) are used successfully for solving stiff differential equations. In this article, a class of hybrid block backward differentiation formulas (HBBDFs) methods that possessed A –stability are ...
Zarina Bibi Ibrahim   +1 more
doaj   +1 more source

Convergence of the Fourth Order Variable Step Size Super Class of Block Backward Differentiation Formula for Solving Stiff Initial Value Problems

open access: yesUMYU Scientifica Journal, 2022
In many fields of study such as science and engineering, various real life problems are created as mathematical models before they are solved. These models often lead to special class of ordinary differential equations known as stiff ODEs.
Najamuddeen Bala, Hamisu Musa
doaj   +1 more source

A New Method for Numerical Integration of Higher-Order Ordinary Differential Equations Without Losing the Periodic Responses

open access: yesFrontiers in Built Environment, 2021
A new numerical method is presented for the solution of initial value problems described by systems of N linear ordinary differential equations (ODEs). Using the state-space representation, a differential equation of order n > 1 is transformed into a ...
John T. Katsikadelis
doaj   +1 more source

Investigation on Ginzburg-Landau equation via a tested approach to benchmark stochastic Davis-Skodje system

open access: yesAlexandria Engineering Journal, 2021
We propose new numerical methods with adding a modified ordinary differential equation solver to the Milstein methods for solution of stiff stochastic systems.
Kazem Nouri   +3 more
doaj   +1 more source

Active Structural Control by Backstepping Design Considering Soil-structure Interaction Effects [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2022
Considering the dependency of control algorithms to the structural dynamic properties that are affected by soil structure interactions (SSI), the investigation of SSI effect on different control methods has gained great importance. Backstepping design as
Farzaneh Modiri, Ehsan Darvishan
doaj   +1 more source

Direct numerical simulation of turbulence at lower costs [PDF]

open access: yes, 1995
Direct Numerical Simulation (DNS) is the most accurate, but also the most expensive, way of computing turbulent flow. To cut the costs of DNS we consider a family of second-order, explicit one-leg time-integration methods and look for the method with the
Veldman, A.E.P.   +5 more
core   +1 more source

A-Stable High Order Hybrid Linear Multistep Methods for Stiff Problems

open access: yesJournal of Algorithms & Computational Technology, 2014
This paper considers a new class of high order hybrid linear multistep methods for the numerical solution of stiff initial value problems (IVPs) in ordinary differential equations (ODEs).
R. I. Okuonghae
doaj   +1 more source

An Analytical Study on Two High-Order Hybrid Methods to Solve Systems of Nonlinear Equations

open access: yesJournal of Mathematics, 2023
In order to solve systems of nonlinear equations, two novel iterative methods are presented. The successive over-relaxation method and the Chebyshev-like iterative methods to solve systems of nonlinear equations have combined to obtain the new algorithms.
Hooman Darvishi, M. T. Darvishi
doaj   +1 more source

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