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arxiv: 1705.05276 · v2 · pith:YOSWXEJZnew · submitted 2017-05-15 · 🧮 math.DS · math.CV

Hyperbolic components of rational maps: Quantitative equidistribution and counting

classification 🧮 math.DS math.CV
keywords lambdarationalequidistributionmapscomponentscountingcyclesdegree
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Let $\Lambda$ be a quasi-projective variety and assume that, either $\Lambda$ is a subvariety of the moduli space $\mathcal{M}_d$ of degree $d$ rational maps, or $\Lambda$ parametrizes an algebraic family $(f_\lambda)_{\lambda\in\Lambda}$ of degree $d$ rational maps on $\mathbb{P}^1$. We prove the equidistribution of parameters having $p$ distinct neutral cycles towards the $p$-th bifurcation current letting the periods of the cycles go to $\infty$, with an exponential speed of convergence. We deduce several fundamental consequences of this result on equidistribution and counting of hyperbolic components. A key step of the proof is a locally uniform version of the quantitative approximation of the Lyapunov exponent of a rational map by the $\log^+$ of the modulus of the multipliers of periodic points.

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