Theorie ergodique des fractions rationnelles sur un corps ultrametrique

Abstract

We make the first steps towards an understanding of the ergodic properties of a rational map defined over a complete algebraically closed non-archimedean field. For such a rational map R, we construct a natural invariant probability measure m_R which reprensents the asymptotic distribution of preimages of non-exceptional point. We show that this measure is exponentially mixing, and satisfies the central limit theorem. We prove some general bounds on the metric entropy of m_R, and on the topological entropy of R. We finally prove that rational maps with vanishing topological entropy have potential good reduction.

43 pages, 4 figures. In french. Final version. To appear in the Proceedings of the London Math. Soc

References in corpus (5)

• Propriétés ergodiques des applications rationnelles
• Analysis and dynamics on the Berkovich projective line
• Sur la structure des ensembles de Fatou p-adiques
• Notes sur la droite projective de Berkovich
• Heights and preperiodic points of polynomials over function fields

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