Extended domain for fifth convergence order schemes

Abstract We provide a local as well as a semi-local analysis of a fifth convergence order scheme involving operators valued on Banach space for solving nonlinear equations. The convergence domain is extended resulting a finer convergence analysis for both types. This is achieved by locating a smalle...

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Detalles Bibliográficos
Autores: Argyros,Ioannis K., George,Santhosh
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:Chile
Institución:Agencia Nacional de Investigación y Desarrollo
Repositorio:SciELO Chile
OAI Identifier:oai:scielo:S0719-06462021000100097
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-06462021000100097
Access Level:acceso abierto
Palabra clave:Fifth order convergence scheme
w-continuity
convergence analysis
Fréchet derivative
Banach space.
Descripción
Sumario:Abstract We provide a local as well as a semi-local analysis of a fifth convergence order scheme involving operators valued on Banach space for solving nonlinear equations. The convergence domain is extended resulting a finer convergence analysis for both types. This is achieved by locating a smaller domain included in the older domain leading this way to tighter Lipschitz type functions. These extensions are obtained without additional hypotheses. Numerical examples are used to test the convergence criteria and also to show the superiority for our results over earlier ones. Our idea can be utilized to extend other schemes using inverses in a similar way.