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Jan Kiwi
Puiseux series polynomial dynamics and iteration of complex cubic polynomials
(Dynamique polynomiale des séries de Puiseux)
Annales de l'institut Fourier, 56 no. 5 (2006), p. 1337-1404
Article: subscription required | Reviews MR 2273859 | Zbl 1110.37036
Class. Math.: 37F45, 12J25, 32S99
Keywords: Puiseux series, Julia sets

Résumé - Abstract

We let $\mathbb{L}$ be the completion of the field of formal Puiseux series and study polynomials with coefficients in $\mathbb{L}$ as dynamical systems. We give a complete description of the dynamical and parameter space of cubic polynomials in $\mathbb{L} [\zeta ]$. We show that cubic polynomial dynamics over $\mathbb{L}$ and $\mathbb{C}$ are intimately related. More precisely, we establish that some elements of $\mathbb{L}$ naturally correspond to the Fourier series of analytic almost periodic functions (in the sense of Bohr) which parametrize (near infinity) the quasiconformal classes of non-renormalizable complex cubic polynomials. Our techniques are based on the ideas introduced by Branner and Hubbard to study complex cubic polynomials.

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