AUTOMORPHISMS OF THE GERSTEN GROUP

被引:0
|
作者
Dudkin, F. A. [1 ,2 ]
Shaporina, E. A. [3 ]
机构
[1] Sobolev Inst Math, Novosibirsk, Russia
[2] Sobolev Inst Math, Omsk Div, Omsk, Russia
[3] Novosibirsk State Univ, Novosibirsk, Russia
关键词
free group; automorphism; outer automorphism group; Gersten group;
D O I
10.1134/S0037446621030046
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The Gersten group G is the split extension F-3 (sic)(phi) Z of the free group F-3 with basis {a, b, c} by the automorphism phi : a bar right arrow a, b bar right arrow ba, c bar right arrow ca(2). We describe the generators and structure of the group Out(G) and prove that Out(G) similar or equal to (F-3 x Z(3)) (sic) (Z(2) x Z(2)).
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页码:413 / 422
页数:10
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