Skip to Main Content


AMS eBook CollectionsOne of the world's most respected mathematical collections, available in digital format for your library or institution


Regular subgroups of primitive permutation groups

About this Title

Martin W. Liebeck, Department of Mathematics, Imperial College, London SW7 2BZ, United Kingdom, Cheryl E. Praeger, School of Mathematics and Statistics, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia and Jan Saxl, DPMMS, CMS, Wilberforce Road, Cambridge CB3 0WB, United Kingdom

Publication: Memoirs of the American Mathematical Society
Publication Year: 2010; Volume 203, Number 952
ISBNs: 978-0-8218-4654-4 (print); 978-1-4704-0566-3 (online)
DOI: https://doi.org/10.1090/S0065-9266-09-00569-9
Published electronically: August 26, 2009
Keywords: Primitive permutation groups, simple groups, Cayley graphs, regular subgroups
MSC: Primary 20B15, 05C25

PDF View full volume as PDF

View other years and numbers:

Table of Contents

Chapters

  • 1. Introduction
  • 2. Preliminaries
  • 3. Transitive and antiflag transitive linear groups
  • 4. Subgroups of classical groups transitive on subspaces
  • 5. Proof of Theorem 1.1: Linear groups
  • 6. Proof of Theorem 1.1: Unitary groups
  • 7. Proof of Theorem 1.1: Orthogonal groups in odd dimension
  • 8. Proof of Theorem 1.1: Orthogonal groups of minus type
  • 9. Proof of Theorem 1.1: Some special actions of symplectic and orthogonal groups
  • 10. Proof of Theorem 1.1: Remaining symplectic cases
  • 11. Proof of Theorem 1.1: Orthogonal groups of plus type
  • 12. Proof of Theorem 1.1: Exceptional groups of Lie type
  • 13. Proof of Theorem 1.1: Alternating groups
  • 14. Proof of Theorem 1.1: Sporadic groups
  • 15. Proof of Theorem and Corollary
  • 16. The tables in Theorem

Abstract

We address the classical problem of determining finite primitive permutation groups $G$ with a regular subgroup $B$. The main theorem solves the problem completely under the assumption that $G$ is almost simple. While there are many examples of regular subgroups of small degrees, the list is rather short (just four infinite families) if the degree is assumed to be large enough, for example at least $30!.$ Another result determines all primitive groups having a regular subgroup which is almost simple. This has an application to the theory of Cayley graphs of simple groups.

References [Enhancements On Off] (What's this?)

References