Centralizers in Mapping Class Groups and Decidability of Thurston Equivalence

Centralizers in Mapping Class Groups and Decidability of Thurston Equivalence
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映射类组中的集中器和瑟斯顿等价的可判定性

DOI:
10.1007/s40598-020-00150-y
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发表时间:
2019
影响因子:
--
通讯作者:
M. Yampolsky
M. Yampolsky
中科院分区:
--
文献类型:
--
作者:
Kasra Rafi;N. Selinger;M. Yampolsky

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We find a constructive bound for the word length of a generating set for the centralizer of an element of the Mapping Class Group. As a consequence, we show that it is algorithmically decidable whether two postcritically finite branched coverings of the sphere are Thurston equivalent.
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