Stability of a Family of Iterative Methods of Fourth-Order

  • Alicia Cordero
  • Lucía GuaspEmail author
  • Juan R. Torregrosa
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11386)


In this paper, we analyze the dynamical anomalies of a family of iterative methods, for solving nonlinear equations, designed by using weight function procedure. All the elements of the family are optimal schemes (in the sense of Kung-Traub conjecture) of fourth-order, but not all have the same stability properties. So, we describe the dynamical behavior of this family on quadratic polynomials. The study of fixed points and their stability, joint with the critical points and their associated parameter planes, show the richness of the presented class and allow us to select the members of the family with good stability properties.


Nonlinear equation Iterative method Dynamical behavior Fatou and Julia sets Basin of attraction 



This research was partially supported by Ministerio de Economía y Competitividad under grants MTM2014-52016-C2-2-P and Generalitat Valenciana PROMETEO/2016/089.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Instituto Universitario de Matemática MultidisciplinarUniversitat Politècnica de ValènciaValènciaSpain

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