Julia Sets of Polynomials are Uniformly Perfect

Julia Sets of Polynomials are Uniformly Perfect
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DOI:
10.1112/blms/26.2.153
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发表时间:
1994-03
影响因子:
0.9
通讯作者:
A. Hinkkanen
A. Hinkkanen
中科院分区:
数学3区
文献类型:
--
作者:
A. Hinkkanen

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设为至少二次多项式。我们将证明Julia集J(F)一致完美。这意味着存在一个常数∈(0,1),仅依赖于使得每当z∈J(F)和0<r<直径J(F)与环空{w:cr≤|w-z|≤r}相交时。
Letfbe a polynomial of degree at least two. We shall show that the Julia setJ(f) offis uniformly perfect. This means that there is a constantc∈(0,1) depending onfonly such that whenever z∈J(f) and 0 <r< diamJ(f) thenJ(f) intersects the annulus {w:cr≤ |w—z| ≤r}.