Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations

This thesis focuses mainly on deriving special two derivative and three derivative Runge-Kutta-Nyström (STDRKN, SThDRKN) methods for solving general secondorder ordinary differential equations (ODEs). The derivation of the explicit STDRKN methods by including the second and third derivatives which i...

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Main Author: Salama, Tahani Mohamed
Format: Thesis
Language:English
Published: 2019
Subjects:
Online Access:http://psasir.upm.edu.my/id/eprint/79249/
http://psasir.upm.edu.my/id/eprint/79249/1/IPM%202019%209%20ir.pdf
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author Salama, Tahani Mohamed
author_facet Salama, Tahani Mohamed
author_sort Salama, Tahani Mohamed
building UPM Institutional Repository
collection Online Access
description This thesis focuses mainly on deriving special two derivative and three derivative Runge-Kutta-Nyström (STDRKN, SThDRKN) methods for solving general secondorder ordinary differential equations (ODEs). The derivation of the explicit STDRKN methods by including the second and third derivatives which involves only one evaluation of second derivative and many evaluations of third derivative per step and explicit SThDRKN methods by including the second, third and fourth derivatives which involve only one evaluation of second derivative, one evaluation of third derivative, and many evaluations of fourth derivative per step has been presented. The regions of stability are presented. The implementation of STDRKN and SThDRKN methods in variable step size is also discussed. The numerical results are shown in terms of function evaluation and accuracy. The mathematical formulation of exponentially-fitted and trigonometrically-fitted for modified explicit STDRKN and SThDRKN methods and exponentially-fitted and trigonometrically-fitted for explicit general two derivative Runge-Kutta-Nyström (TDRKN) methods for solving the general second-order ODEs whose solutions involving exponential or trigonometric form has been described. The numerical results show that the new methods are more accurate and efficient than several existing methods in the literature. The semi-implicit STDRKN and SThDRKN methods are derived. The stability properties are investigated. Some numerical examples are given to illustrate the efficiency of the methods. As a whole, the two and three derivative Runge-Kutta- Nyström methods for solving general second-order ordinary differential equations have been presented. The illustrative examples demonstrate the accuracy advantage of the new methods.
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institution Universiti Putra Malaysia
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language English
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spelling upm-792492022-01-12T03:25:58Z http://psasir.upm.edu.my/id/eprint/79249/ Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations Salama, Tahani Mohamed This thesis focuses mainly on deriving special two derivative and three derivative Runge-Kutta-Nyström (STDRKN, SThDRKN) methods for solving general secondorder ordinary differential equations (ODEs). The derivation of the explicit STDRKN methods by including the second and third derivatives which involves only one evaluation of second derivative and many evaluations of third derivative per step and explicit SThDRKN methods by including the second, third and fourth derivatives which involve only one evaluation of second derivative, one evaluation of third derivative, and many evaluations of fourth derivative per step has been presented. The regions of stability are presented. The implementation of STDRKN and SThDRKN methods in variable step size is also discussed. The numerical results are shown in terms of function evaluation and accuracy. The mathematical formulation of exponentially-fitted and trigonometrically-fitted for modified explicit STDRKN and SThDRKN methods and exponentially-fitted and trigonometrically-fitted for explicit general two derivative Runge-Kutta-Nyström (TDRKN) methods for solving the general second-order ODEs whose solutions involving exponential or trigonometric form has been described. The numerical results show that the new methods are more accurate and efficient than several existing methods in the literature. The semi-implicit STDRKN and SThDRKN methods are derived. The stability properties are investigated. Some numerical examples are given to illustrate the efficiency of the methods. As a whole, the two and three derivative Runge-Kutta- Nyström methods for solving general second-order ordinary differential equations have been presented. The illustrative examples demonstrate the accuracy advantage of the new methods. 2019-03 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/79249/1/IPM%202019%209%20ir.pdf Salama, Tahani Mohamed (2019) Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations. Doctoral thesis, Universiti Putra Malaysia. Mathematical models Runge-Kutta formulas
spellingShingle Mathematical models
Runge-Kutta formulas
Salama, Tahani Mohamed
Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations
title Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations
title_full Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations
title_fullStr Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations
title_full_unstemmed Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations
title_short Two derivative and three derivative Runge-Kutta- Nyström methods for second-order ordinary differential equations
title_sort two derivative and three derivative runge-kutta- nyström methods for second-order ordinary differential equations
topic Mathematical models
Runge-Kutta formulas
url http://psasir.upm.edu.my/id/eprint/79249/
http://psasir.upm.edu.my/id/eprint/79249/1/IPM%202019%209%20ir.pdf