Noninner automorphisms of finite p-groups leaving the center elementwise fixed
A longstanding conjecture asserts that every finite nonabelian p-group admits a noninner automorphism of order p. Let G be a finite nonabelian p-group. It is known that if G is regular or of nilpotency class 2 or the commutator subgroup of G is cyclic, or G/Z(G) is powerful, then G has a noninner au...
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doaj-4a644caff9ac4aa587324cf75dbad3ca2020-11-25T02:26:51ZengUniversity of IsfahanInternational Journal of Group Theory2251-76502251-76692013-12-01241720Noninner automorphisms of finite p-groups leaving the center elementwise fixedAlireza AbdollahiS. Mohsen GhoraishiA longstanding conjecture asserts that every finite nonabelian p-group admits a noninner automorphism of order p. Let G be a finite nonabelian p-group. It is known that if G is regular or of nilpotency class 2 or the commutator subgroup of G is cyclic, or G/Z(G) is powerful, then G has a noninner automorphism of order p leaving either the center Z(G) or the Frattini subgroup Phi(G) of G elementwise fixed. In this note, we prove that the latter noninner automorphism can be chosen so that it leaves Z(G) elementwise fixed.http://www.theoryofgroups.ir/?_action=showPDF&article=2761&_ob=dbf6c7e37f884c3d7c270219cb030012&fileName=full_text.pdf.Noninner automorphismfinite p-groupsthe center |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alireza Abdollahi S. Mohsen Ghoraishi |
spellingShingle |
Alireza Abdollahi S. Mohsen Ghoraishi Noninner automorphisms of finite p-groups leaving the center elementwise fixed International Journal of Group Theory Noninner automorphism finite p-groups the center |
author_facet |
Alireza Abdollahi S. Mohsen Ghoraishi |
author_sort |
Alireza Abdollahi |
title |
Noninner automorphisms of finite p-groups leaving the center elementwise fixed |
title_short |
Noninner automorphisms of finite p-groups leaving the center elementwise fixed |
title_full |
Noninner automorphisms of finite p-groups leaving the center elementwise fixed |
title_fullStr |
Noninner automorphisms of finite p-groups leaving the center elementwise fixed |
title_full_unstemmed |
Noninner automorphisms of finite p-groups leaving the center elementwise fixed |
title_sort |
noninner automorphisms of finite p-groups leaving the center elementwise fixed |
publisher |
University of Isfahan |
series |
International Journal of Group Theory |
issn |
2251-7650 2251-7669 |
publishDate |
2013-12-01 |
description |
A longstanding conjecture asserts that every finite nonabelian p-group admits a noninner automorphism of order p. Let G be a finite nonabelian p-group. It is known that if G is regular or of nilpotency class 2 or the commutator subgroup of G is cyclic, or G/Z(G) is powerful, then G has a noninner automorphism of order p leaving either the center Z(G) or the Frattini subgroup Phi(G) of G elementwise fixed. In this note, we prove that the latter noninner automorphism can be chosen so that it leaves Z(G) elementwise fixed. |
topic |
Noninner automorphism finite p-groups the center |
url |
http://www.theoryofgroups.ir/?_action=showPDF&article=2761&_ob=dbf6c7e37f884c3d7c270219cb030012&fileName=full_text.pdf. |
work_keys_str_mv |
AT alirezaabdollahi noninnerautomorphismsoffinitepgroupsleavingthecenterelementwisefixed AT smohsenghoraishi noninnerautomorphismsoffinitepgroupsleavingthecenterelementwisefixed |
_version_ |
1724845359738388480 |