On a theorem of Artin

On a theorem of Artin
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关于Artin定理

DOI:
10.1515/jgth.2003.030
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发表时间:
2002
影响因子:
4.4
通讯作者:
L. Paris
L. Paris
中科院分区:
化学2区
文献类型:
--
作者:
A. Cohen;L. Paris

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当Gamma是球型不可约Coxeter图时,我们确定了Gamma型Artin群A到Gamma型Coxeter群W上的满射A --> W,并证明了标准满射的核是A的特征子群.这推广了Artin的一个50多年前的结果
We determine the epimorphisms A --> W from the Artin group A of type Gamma onto the Coxeter group W of type Gamma, in case Gamma is an irreducible Coxeter graph of spherical type, and we prove that the kernel of the standard epimorphism is a characteristic subgroup of A. This generalizes an over 50 years old result of Artin