UNMATING OF RATIONAL MAPS, SUFFICIENT CRITERIA AND EXAMPLES

UNMATING OF RATIONAL MAPS, SUFFICIENT CRITERIA AND EXAMPLES
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有理图的拆解、充分标准和示例

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
Daniel Meyer
Daniel Meyer
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文献类型:
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作者:
Daniel Meyer

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Douady和Hubbard介绍了多项式的交配运算.这识别了两个填充的Julia集和通过外部光线在它们上的动力学。在许多情况下,人们得到一个有理映射。这里讨论的是相反的问题。也就是说,我们要问的是,给定的(后临界有限的)有理映射f何时作为一个交配而出现。当这是可能的一个充分条件。如果满足这个条件,我们给出了一个简单的显式算法来分解有理映射。这意味着我们将f分解为多项式,当配对时产生f。几个例子的unmatings。
Douady and Hubbard introduced the operation of mating of poly- nomials. This identifies two filled Julia sets and the dynamics on them via external rays. In many cases one obtains a rational map. Here the opposite question is tackled. Namely we ask when a given (postcritically finite) rational map f arises as a mating. A sufficient condition when this is possible is given. If this condition is satisfied, we present a simple explicit algorithm to unmate the rational map. This means we decompose f into polynomials, that when mated yield f. Several examples of unmatings are presented.
DOI: 10.1007/s11511-013-0091-0
发表时间: 2009-07
期刊: Acta Mathematica
影响因子: 3.7
作者:
Daniel Meyer
通讯作者: Daniel Meyer