Home Realizing finite groups as automizers
Article
Licensed
Unlicensed Requires Authentication

Realizing finite groups as automizers

  • Sylvia Bayard and Justin Lynd EMAIL logo
Published/Copyright: February 9, 2024

Abstract

It is shown that any finite group ๐ด is realizable as the automizer in a finite perfect group ๐บ of an abelian subgroup whose conjugates generate ๐บ. The construction uses techniques from fusion systems on arbitrary finite groups, most notably certain realization results for fusion systems of the type studied originally by Park.

Award Identifier / Grant number: DMS-1902152

Funding statement: J. Lynd was partially supported by NSF Grant DMS-1902152.

  1. Communicated by: Christopher W. Parker

References

[1] M. Aschbacher, R. Kessar and B. Oliver, Fusion Systems in Algebra and Topology, London Math. Soc. Lecture Note Ser. 391, Cambridge University, Cambridge, 2011. 10.1017/CBO9781139003841Search in Google Scholar

[2] D.โ€‰A. Craven, The Theory of Fusion Systems, Cambridge Stud. Adv. Math. 131, Cambridge University, Cambridge, 2011. Search in Google Scholar

[3] D. Gorenstein, Finite Groups, 2nd ed., Chelsea Publishing, New York, 1980. Search in Google Scholar

[4] P. Mueller, Normalizers in symmetric groups, MathOverflow (2020), https://mathoverflow.net/q/102532. Search in Google Scholar

[5] S. Park, Realizing a fusion system by a single finite group, Arch. Math. (Basel) 94 (2010), no. 5, 405โ€“410. 10.1007/s00013-010-0119-zSearch in Google Scholar

[6] S. Park, Realizing fusion systems inside finite groups, Proc. Amer. Math. Soc. 144 (2016), no. 8, 3291โ€“3294. 10.1090/proc/13077Search in Google Scholar

[7] ร–. รœnlรผ and E. Yalรงฤฑn, Fusion systems and constructing free actions on products of spheres, Math. Z. 270 (2012), no. 3โ€“4, 939โ€“959. 10.1007/s00209-010-0833-zSearch in Google Scholar

[8] A.โ€‰A. Warraich, Realizing infinite families of fusion systems over finite groups, Ph.D. thesis, The University of Birmingham, 2019. Search in Google Scholar

Received: 2022-08-26
Revised: 2024-01-08
Published Online: 2024-02-09
Published in Print: 2024-07-01

ยฉ 2024 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 18.10.2025 from https://www.degruyterbrill.com/document/doi/10.1515/jgth-2022-0145/html
Scroll to top button