Results 21 to 30 of about 32,424,344 (291)

ANALYSIS OF THE SPRUCE BUDWORM MODEL USING THE HEUN METHOD AND THIRD-ORDER RUNGE-KUTTA

open access: yesBarekeng, 2022
This study discusses the analysis of the Spruce Budworm model using numerical methods, namely the Heun method and the Third Order Runge-Kutta method.  The purpose of this study is to determine the numerical results of the Heun method and the Third Order ...
Irwan Irwan   +4 more
doaj   +1 more source

Solving Oscillating Problems Using Modifying Runge-Kutta Methods

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
This paper develop conventional Runge-Kutta methods of order four and order five to solve ordinary differential equations with oscillating solutions.
Zainab Khaled Ghazal   +1 more
doaj   +1 more source

Different approaches in GLONASS orbit computation from broadcast ephemeris [PDF]

open access: yesGeodetski Vestnik, 2016
Several types of methods can solve equations of satellite motion numerically. These methods are divided into single and multi-step methods. The accuracy of each method depends directly on adopted integration step size between successive iterations.
Kamil Maciuk
doaj   +1 more source

Improved Runge-Kutta Method for Oscillatory Problem Solution Using Trigonometric Fitting Approach

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2023
This paper provides a four-stage Trigonometrically Fitted Improved Runge-Kutta (TFIRK4) method of four orders to solve oscillatory problems, which contains an oscillatory character in the solutions.
Kasim A. Hussain, Waleed J. Hasan
doaj   +1 more source

Linear Stability Analysis of Runge-Kutta Methods for Singular Lane-Emden Equations

open access: yesJournal of Nigerian Society of Physical Sciences, 2020
Runge-Kutta methods are efficient methods of computations in differential equations, the classical Runge-Kutta method of order 4 happens to be the most popular of these methods, and most times it is attached to the mind when Runge-Kutta methods are ...
M. O. Ogunniran   +3 more
doaj   +1 more source

Convergence of an Exponential Runge–Kutta Method for Non-smooth Initial Data

open access: yesEuropean Journal of Pure and Applied Mathematics, 2019
The paper presents error bounds for the second order exponential Runge-Kutta method for parabolic abstract linear time-dependent differential equations incorporating non-smooth initial data. As an example for this particular type of problems, the paper presents a spatial discretization of a partial integro-differential equation arising in financial ...
Gondal, Muhammad Asif   +2 more
openaire   +3 more sources

Stochastic Runge–Kutta methods for multi-dimensional Itô stochastic differential algebraic equations

open access: yesResults in Applied Mathematics, 2021
In this paper, we discuss the numerical solutions to index 1 stochastic differential algebraic equations. We introduce a new class of weak second-order stochastic Runge–Kutta methods for finding the numerical approximate solutions to multi-dimensional ...
Priya Nair, Anandaraman Rathinasamy
doaj   +1 more source

Optimal monotonicity-preserving perturbations of a given Runge-Kutta method [PDF]

open access: yes, 2018
Perturbed Runge--Kutta methods (also referred to as downwind Runge--Kutta methods) can guarantee monotonicity preservation under larger step sizes relative to their traditional Runge--Kutta counterparts.
Higueras, Inmaculada   +2 more
core   +2 more sources

Strong Stability Preserving Integrating Factor Runge-Kutta Methods [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2017
Strong stability preserving (SSP) Runge-Kutta methods are often desired when evolving in time problems that have two components that have very different time scales.
Leah Isherwood   +2 more
semanticscholar   +1 more source

Extrapolated Implicit–Explicit Runge–Kutta Methods

open access: yesMathematical Modelling and Analysis, 2014
We investigate a new class of implicit–explicit singly diagonally implicit Runge–Kutta methods for ordinary differential equations with both non-stiff and stiff components. The approach is based on extrapolation of the stage values at the current step by
Angelamaria Cardone   +3 more
doaj   +1 more source

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