Development of an Efficient Diagonally Implicit Runge–Kutta–Nyström 5(4) Pair for Special Second Order IVPs.

[EN]In this work, a new pair of diagonally implicit Runge–Kutta–Nyström methods with four stages is constructed. The proposed method has been derived to solve initial value problems of special second-order ordinary-differential equations. The principal local truncation error of the new method is obt...

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Detalhes bibliográficos
Autores: Demba, Musa Ahmed, Senu, Norazak, Ramos Calle, Higinio, Watthayu, Wiboonsak
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Recursos:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/156342
Acesso em linha:http://hdl.handle.net/10366/156342
Access Level:acceso abierto
Palavra-chave:Diagonally implicit methods
Embedded pairs
Runge–Kutta–Nyström
Oscillatory problems
Initial value problems
12 Matemáticas
Descrição
Resumo:[EN]In this work, a new pair of diagonally implicit Runge–Kutta–Nyström methods with four stages is constructed. The proposed method has been derived to solve initial value problems of special second-order ordinary-differential equations. The principal local truncation error of the new method is obtained, and the main characteristics of the new method are analyzed. Some numerical experiments are performed, which demonstrate the robustness and efficiency of the new embedded pair.