Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs

This paper derives the EDITRK4 technique, which is an exponentially fitted diagonally implicit RK method for solving ODEs . This approach is intended to integrate exactly initial value problems (IVPs), their solutions consist of linear combinations of the group functions  and  for exponentially fitt...

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Main Authors: Firas A. Fawzi, Nour W. Jaleel
Format: Article
Language:English
Published: University of Baghdad 2023-01-01
Series:Ibn Al-Haitham Journal for Pure and Applied Sciences
Subjects:
Online Access:https://jih.uobaghdad.edu.iq/index.php/j/article/view/2883
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author Firas A. Fawzi
Nour W. Jaleel
author_facet Firas A. Fawzi
Nour W. Jaleel
author_sort Firas A. Fawzi
collection DOAJ
description This paper derives the EDITRK4 technique, which is an exponentially fitted diagonally implicit RK method for solving ODEs . This approach is intended to integrate exactly initial value problems (IVPs), their solutions consist of linear combinations of the group functions  and  for exponentially fitting  problems, with  being the problem’s major frequency utilized to improve the precision of the method. The modified  method EDITRK4 is a new three-stage fourth-order exponentially-fitted diagonally implicit approach for solving IVPs with functions that are exponential as solutions. Different forms of -order ODEs must be derived using the modified system, and when the same issue is reduced to a  framework of equations that can be solved using conventional RK approaches, numerical comparisons must be done. The findings show that the novel approach is more efficacious than previously published methods.
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spelling doaj.art-6eb5d050439a41d1a45ce865ee3890912023-02-01T08:52:15ZengUniversity of BaghdadIbn Al-Haitham Journal for Pure and Applied Sciences1609-40422521-34072023-01-0136138939910.30526/36.1.28834254Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEsFiras A. Fawzi0Nour W. Jaleel1Department of Mathematics, Faculty of Computer Science and Mathematics, Tikrit University, Sallah AL-Deen, IRAQDepartment of Mathematics,Faculty of Computer Science and Mathematics ,University of TikritThis paper derives the EDITRK4 technique, which is an exponentially fitted diagonally implicit RK method for solving ODEs . This approach is intended to integrate exactly initial value problems (IVPs), their solutions consist of linear combinations of the group functions  and  for exponentially fitting  problems, with  being the problem’s major frequency utilized to improve the precision of the method. The modified  method EDITRK4 is a new three-stage fourth-order exponentially-fitted diagonally implicit approach for solving IVPs with functions that are exponential as solutions. Different forms of -order ODEs must be derived using the modified system, and when the same issue is reduced to a  framework of equations that can be solved using conventional RK approaches, numerical comparisons must be done. The findings show that the novel approach is more efficacious than previously published methods.https://jih.uobaghdad.edu.iq/index.php/j/article/view/2883numerical methods exponentially fittedordinary differential equationsdiagonal implicit type runge kutta methods
spellingShingle Firas A. Fawzi
Nour W. Jaleel
Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs
Ibn Al-Haitham Journal for Pure and Applied Sciences
numerical methods
exponentially fitted
ordinary differential equations
diagonal implicit type runge kutta methods
title Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs
title_full Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs
title_fullStr Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs
title_full_unstemmed Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs
title_short Exponentially Fitted Diagonally Implicit EDITRK Method for Solving ODEs
title_sort exponentially fitted diagonally implicit editrk method for solving odes
topic numerical methods
exponentially fitted
ordinary differential equations
diagonal implicit type runge kutta methods
url https://jih.uobaghdad.edu.iq/index.php/j/article/view/2883
work_keys_str_mv AT firasafawzi exponentiallyfitteddiagonallyimpliciteditrkmethodforsolvingodes
AT nourwjaleel exponentiallyfitteddiagonallyimpliciteditrkmethodforsolvingodes