Jacobian-Free Vectorial Iterative Scheme to Find Simple Several Solutions Simultaneously

[EN] This manuscript is devoted to a derivative-free parametric iterative step to obtain roots simultaneously for both nonlinear systems and equations. We prove that when it is added to an arbitrary scheme, it doubles the convergence order of the original procedure and defines a new algorithm that o...

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Detalles Bibliográficos
Autores: Cordero Barbero, Alicia|||0000-0002-7462-9173, Torregrosa Sánchez, Juan Ramón|||0000-0002-9893-0761, Triguero-Navarro, Paula|||0000-0002-7319-9992
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/220055
Acceso en línea:https://riunet.upv.es/handle/10251/220055
Access Level:acceso abierto
Palabra clave:Derivative-free
Iterative procedures
Jacobian-free
Nonlinear equations and systems
Simultaneously
Descripción
Sumario:[EN] This manuscript is devoted to a derivative-free parametric iterative step to obtain roots simultaneously for both nonlinear systems and equations. We prove that when it is added to an arbitrary scheme, it doubles the convergence order of the original procedure and defines a new algorithm that obtains several solutions simultaneously. Different numerical experiments are carried out to check the behavior of the iterative methods by changing the value of the parameter and the initial guesses. Also, it performs a numerical example where the dynamical planes are carried out to see and compare the basins of attraction.