An improvement of j. Rivera-letelier result on weak hyperbolicity on periodic orbits for polynomials

Feliks Przytycki

Resumen


We prove that for f : ¯CI → ¯CI a rational mapping of the Riemann sphere of degree at least 2 and Ω a simply connected immediate basin of attraction to an attracting fixed point, if |(f n)0 (p)| ≥ Cn3+ξ for constants ξ > 0,C > 0 all positive integers n and all repelling periodic points p of period n in Julia set for f, then a Riemann mapping R : ID → Ω extends continuously to ¯ID and FrΩ is locally connected. This improves a result proved by J. Rivera-Letelier for Ω the basin of infinity for polynomials, and 5 + ξ rather than 3 + ξ.


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Referencias


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DOI: http://dx.doi.org/10.4067/S0716-09172005000300006

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