Results 1 to 10 of about 20,204 (210)

Solution for nonlinear Duffing oscillator using variable order variable stepsize block method [PDF]

open access: yesMATEMATIKA, 2017
Real life phenomena found in various fields such as engineering, physics, biology and communication theory can be modeled as nonlinear higher order ordinary differential equations, particularly the Duffing oscillator.
Abdul Sathar, Mohamad Hasan   +7 more
core   +3 more sources

A variable step-size implementation of a new one-step block method for integrating Burgers' model equation

open access: yesAlexandria Engineering Journal, 2023
This article proposes a variable stepsize implementation of an improved one-step block method (OBM) that uses two intermediate points to solve Burgers' equation.
Mufutau Ajani Rufai, Bruno Carpentieri
doaj   +1 more source

Second derivative General Linear Method in Nordsieck form

open access: yesJournal of Numerical Analysis and Approximation Theory, 2019
This paper considers the construction of second derivative general linear methods (SD-GLM) from hybrid LMM and their transformation to Nordsieck GLM. How the Runge-Kutta starters for the methods can be derived are given.
Robert I. Okuonghae   +1 more
doaj   +7 more sources

A New Hybrid Block Method for Solving First-Order Differential System Models in Applied Sciences and Engineering

open access: yesFractal and Fractional, 2023
This paper presents a new hybrid block method formulated in variable stepsize mode to solve some first-order initial value problems of ODEs and time-dependent partial differential equations in applied sciences and engineering.
Mufutau Ajani Rufai   +2 more
doaj   +1 more source

Variable stepsize construction of a two-step optimized hybrid block method with relative stability

open access: yesOpen Physics, 2022
Several numerical techniques for solving initial value problems arise in physical and natural sciences. In many cases, these problems require numerical treatment to achieve the required solution.
Baleanu Dumitru   +3 more
doaj   +1 more source

Some efficient Nordsieck integration methods for IVPs [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2018
In this paper, in continuation of the construction of efficient numerical methods for stiff IVPs, we construct type two Nordsieck second derivative general linear methods with order p = s, where s is the number of internal stages, and stage order q = p ...
N. Barghi Oskouie, A. Abdi, G. Hojjati
doaj   +1 more source

Development of an Efficient Variable Step-Size Gradient Method Utilizing Variable Fractional Derivatives

open access: yesFractal and Fractional, 2023
The fractional gradient method has garnered significant attention from researchers. The common view regarding fractional-order gradient methods is that they have a faster convergence rate compared to classical gradient methods.
Luotang Ye, Yanmao Chen, Qixian Liu
doaj   +1 more source

Variable stepsize SDIMSIMs for ordinary differential equations [PDF]

open access: yesApplied Numerical Mathematics, 2021
Second derivative general linear methods (SGLMs) have been already implemented in a variable stepsize environment using Nordsieck technique. In this paper, we introduce variable stepsize SGLMs directly on nonuniform grid. By deriving the order conditions of the proposed methods of order $p$ and stage order $q=p$, some explicit examples of these methods
Jalilian, A., Abdi, A., Hojjati, G.
openaire   +2 more sources

Variable-Stepsize Explicit Two-Step Runge-Kutta Methods [PDF]

open access: yesMathematics of Computation, 1992
Variable-step explicit two-step Runge-Kutta methods for the numerical solution of ordinary differential equations are studied. Order conditions are derived and the results about the minimal number of stages required to attain a given order are established up to order five.
JACKIEWICZ Z., ZENNARO, MARINO
openaire   +2 more sources

Inertial Optimization Based Two-Step Methods for Solving Equilibrium Problems with Applications in Variational Inequality Problems and Growth Control Equilibrium Models

open access: yesEnergies, 2020
This manuscript aims to incorporate an inertial scheme with Popov’s subgradient extragradient method to solve equilibrium problems that involve two different classes of bifunction.
Habib ur Rehman   +4 more
doaj   +1 more source

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