Finite quotients of the automorphism group of a free group

Finite quotients of the automorphism group of a free group
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自由群自同构群的有限商

DOI:
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发表时间:
1995
期刊:
影响因子:
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通讯作者:
Y. Wong
Y. Wong
中科院分区:
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文献类型:
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作者:
M. Lang;K. Leung;Y. Wong

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秩为n的自由群Fn的自同构群AutFn作用于群G的n个副本的乘积,通过将G的n个元素代入定义自由群的自同构的词中。这就产生了从AutFn到置换群的反同态。当G是半直积Zp × Zq时,我们确定AutFn的这个反同态像
The automorphism group AutFn of a free group Fn of rank n acts on the product of n copies of a group G by substituting n elements of G into the words defining an automorphism of the free group. This gives rise to an antihomomorphism from AutFnto a permutation group. We determine this antihomomorphic image of AutFn when G is the semidirect product Zp x Zq