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Behaviour of fixed and critical points of the \(\left( \alpha ,c\right) \)-family of iterative methods

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Abstract

In this paper we study the dynamical behavior of the \((\alpha ,c)\)-family of iterative methods for solving nonlinear equations, when we apply the fixed point operator associated to this family on quadratic polynomials. This is a family of third-order iterative root-finding methods depending on two parameters; so, as we show throughout this paper, its dynamics is really interesting, but complicated. In fact, we have found in the real \((\alpha ,c)\)-plane a line in which the corresponding elements of the family have a lower number of free critical points. As this number is directly related with the quantity of basins of attraction, it is probable to find more stable behavior between the elements of the family in this region.

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Authors and Affiliations

  1. Instituto de Matemáticas y Aplicaciones de Castellón, Universitat Jaume I, Castellón de la Plana, Spain

    B. Campos & P. Vindel

  2. Instituto de Matemática Multidisciplinar, Universitat Politécnica de Valencia, Valencia, Spain

    A. Cordero & J. R. Torregrosa

Authors
  1. B. Campos
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  2. A. Cordero
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  3. J. R. Torregrosa
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  4. P. Vindel
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Corresponding author

Correspondence to P. Vindel.

Additional information

Supported by Ministerio de Ciencia y Tecnología MTM2011-28636-C02-02. The first and fourth authors were also partially supported by P11B2011-30 (Universitat Jaume I), the second and third authors were also partially supported by Vicerrectorado de Investigación, Universitat Politècnica de València SP20120474.

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Campos, B., Cordero, A., Torregrosa, J.R. et al. Behaviour of fixed and critical points of the \(\left( \alpha ,c\right) \)-family of iterative methods. J Math Chem 53, 807–827 (2015). https://doi.org/10.1007/s10910-014-0465-3

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  • DOI: https://doi.org/10.1007/s10910-014-0465-3

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