Connected McMullen-like Julia sets in a Chebyshev-Halley Family - Centre International de Mathématiques et d'Informatique de Toulouse
Pré-Publication, Document De Travail Année : 2025

Connected McMullen-like Julia sets in a Chebyshev-Halley Family

Résumé

In this paper we study a one parameter family of rational maps obtained by applying the Chebyshev-Halley root finding algorithms. We show that the dynamics near parameters where the family presents some degeneracy might be understood from the point of view of singular perturbations. More precisely, we relate the dynamics of those maps with the one of the McMullen family $M_{\lambda}(z)=z^4 + \lambda /z^2$, using quasi-conformal surgery.
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Dates et versions

hal-04860946 , version 1 (01-01-2025)

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Jordi Canela, Antonio Garijo, Pascale Roesch. Connected McMullen-like Julia sets in a Chebyshev-Halley Family. 2025. ⟨hal-04860946⟩
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