Results 1 to 10 of about 12,080 (168)

Accelerated Runge-Kutta Methods [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2008
Standard Runge-Kutta methods are explicit, one-step, and generally constant step-size numerical integrators for the solution of initial value problems. Such integration schemes of orders 3, 4, and 5 require 3, 4, and 6 function evaluations per time step ...
Firdaus E. Udwadia, Artin Farahani
doaj   +3 more sources

Fractional Order Runge–Kutta Methods

open access: yesFractal and Fractional, 2023
This paper presents a new class of fractional order Runge–Kutta (FORK) methods for numerically approximating the solution of fractional differential equations (FDEs).
Farideh Ghoreishi   +2 more
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

Numerical Simulation of Fuzzy Volterra Integro-differential ‎Equation using Improved Runge-Kutta Method [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2023
In this research, fourth-order Improved Runge-Kutta method with three stages for solving fuzzy Volterra integro-differential (FVID) equations of the second kind under the concept of generalized Hukuhara differentiability is proposed. The advantage of the
Faranak Rabiei   +6 more
doaj   +1 more source

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

Conservative Continuous-Stage Stochastic Runge–Kutta Methods for Stochastic Differential Equations

open access: yesFractal and Fractional, 2023
In this paper, we develop a new class of conservative continuous-stage stochastic Runge–Kutta methods for solving stochastic differential equations with a conserved quantity. The order conditions of the continuous-stage stochastic Runge–Kutta methods are
Xiuyan Li   +3 more
doaj   +1 more source

Runge–Kutta–Möbius methods

open access: yesPeriodica Mathematica Hungarica, 2023
AbstractIn the numerical integration of nonlinear autonomous initial value problems, the computational process depends on the step size scaled vector field hf as a distinct entity. This paper considers a parameterized transformation $$\begin{aligned} hf \mapsto hf \circ (I-\gamma hf)^{-1}, \end{aligned}$$
Molnár, András   +2 more
openaire   +4 more sources

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

Continuous stage stochastic Runge–Kutta methods

open access: yesAdvances in Difference Equations, 2021
In this work, a version of continuous stage stochastic Runge–Kutta (CSSRK) methods is developed for stochastic differential equations (SDEs). First, a general order theory of these methods is established by the theory of stochastic B-series and ...
Xuan Xin, Wendi Qin, Xiaohua Ding
doaj   +1 more source

Optimum Runge-Kutta methods [PDF]

open access: yesMathematics of Computation, 1964
The optimum Runge-Kutta method of a particular order is the one whose truncation error is a minimum. Various measures of the size of the truncation error are considered. The optimum method is practically independent of the measure being used. Moreover, among methods of the same order which one might consider using the difference in size of the ...
Hull, T. E., Johnston, R. L.
openaire   +1 more source

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