Rigid automorphisms of linking systems
Rigid automorphisms of linking systems
复制标题
连接系统的刚性自同构
DOI:
10.1017/fms.2021.17
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Lynd, Justin
中科院分区:
文献类型:
--
作者:
Glauberman, George;Lynd, Justin
A rigid automorphism of a linking system is an automorphism that restricts to the identity on the Sylow subgroup. A rigid inner automorphism is conjugation by an element in the center of the Sylow subgroup. At odd primes, it is known that each rigid automorphism of a centric linking system is inner. We prove that the group of rigid outer automorphisms of a linking system at the prime is elementary abelian and that it splits over the subgroup of rigid inner automorphisms. In a second result, we show that if an automorphism of a finite group G restricts to the identity on the centric linking system for G, then it is of -order modulo the group of inner automorphisms, provided G has no nontrivial normal -subgroups. We present two applications of this last result, one to tame fusion systems.
登录
查看更多内容
影响因子:
1
作者:
Glauberman, George;Guralnick, Robert;Lynd, Justin;Navarro, Gabriel
通讯作者:
Navarro, Gabriel
影响因子:
0.8
作者:
G. Glauberman
通讯作者:
G. Glauberman
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
A. Chermak
通讯作者:
A. Chermak
DOI:
10.1017/s0305004104007728
发表时间:
2004
影响因子:
0.8
作者:
B. Oliver
通讯作者:
B. Oliver
影响因子:
4.9
作者:
R. Oliver
通讯作者:
R. Oliver