Dynamics of a family of Chebyshev-Halley type methods

In this paper, the dynamics of the Chebyshev-Halley family is studied on quadratic polynomials. A singular set, that we call cat set, appears in the parameter space associated to the family. This set has interesting similarities with the Mandelbrot set. The parameter space has allowed us to find dif...

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Bibliographic Details
Authors: Cordero Barbero, Alicia|||0000-0002-7462-9173, Torregrosa Sánchez, Juan Ramón|||0000-0002-9893-0761, Vindel Cañas, Pura
Format: article
Publication Date:2013
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/54855
Online Access:https://riunet.upv.es/handle/10251/54855
Access Level:Open access
Keyword:Nonlinear equations
Iterative methods
Dynamical behavior
Quadratic polynomials
Fatou and Julia sets
Chebyshef-Halley method
Non-convergence regions
MATEMATICA APLICADA
Description
Summary:In this paper, the dynamics of the Chebyshev-Halley family is studied on quadratic polynomials. A singular set, that we call cat set, appears in the parameter space associated to the family. This set has interesting similarities with the Mandelbrot set. The parameter space has allowed us to find different elements of the family which have bad convergence properties, since periodic orbits and attractive strange fixed points appear in the dynamical plane of the corresponding method. (C) 2013 Elsevier Inc. All rights reserved.