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A new construction of the Ree groups of type 2G2

Published online by Cambridge University Press:  30 April 2010

Robert A. Wilson
Affiliation:
School of Mathematical Sciences, Queen Mary, University of London, Mile End Road, London E1 4NS, UK (r.a.wilson@qmul.ac.uk)
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Abstract

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We give a new elementary construction of Ree's family of finite simple groups of type 2G2, which avoids the need for the machinery of Lie algebras and algebraic groups. We prove that the groups we construct are simple of order q3(q3 + 1)(q − 1) and act doubly transitively on an explicit set of q3 + 1 points, where q = 32k+1. Moreover, our construction is practical in the sense that generators for the groups and many of their maximal subgroups may easily be obtained.

MSC classification

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 2010