A theorem about coprime action

Rebecca Waldecker

Research output: Contribution to journalArticle

2 Citations (Scopus)


It is well known that if an elementary abelian p-group P acts on a p'-group Q and Q = vertical bar Q, P vertical bar, then Q . Does a similar statement hold for C-Q(P)? Under further assumptions, the answer is yes. Goldschmidt proves theorems of this flavour in [D.M. Goldschmidt, Weakly embedded 2-local subgroups of finite groups, J. Algebra 21 (1972) 341-351. [1]; D.M. Goldschmidt, Strongly closed 2-subgroups of finite groups, Ann. of Math. (2) 102 (1975) 475-489. [21] and uses them to construct signallizer functors. For the same reason we prove a result of this type, under the assumption that Q is soluble. (C) 2008 Elsevier Inc. All rights reserved.
Original languageEnglish
Pages (from-to)2027-2030
Number of pages4
JournalJournal of Algebra
Issue number5
Publication statusPublished - 1 Sept 2008


  • coprime action
  • finite groups


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