A parabolic Pommerenke-Levin-Yoccoz inequality
A parabolic Pommerenke-Levin-Yoccoz inequality
复制标题
抛物线 Pommerenke-Levin-Yoccoz 不等式
DOI:
10.4064/fm172-3-3
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发表时间:
2002
影响因子:
0.6
通讯作者:
A. Epstein
中科院分区:
文献类型:
--
作者:
Xavier Buff;A. Epstein
In a recent preprint (B), Bergweiler relates the number of critical points contained in the immediate basin of a multiple xed point of a rational mapf :P 1 !P 1 , the number N of attracting petals and the residue (f; ) of the 1-form dz=(z f(z)) at . In this article, we present a dieren t approach to the same problem, which we were developing independently at the same time. We apply our method to answer a question raised by Bergweiler. In particular, we prove that when there are only N grand orbit equivalence classes of critical points in the immediate basin, then N= 2 :