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Finite Groups and Lie Rings with an Automorphism of Order 2n

Published online by Cambridge University Press:  15 June 2016

E. I. Khukhro
Affiliation:
Sobolev Institute of Mathematics, Novosibirsk, 630 090, Russia ([email protected]; [email protected]) University of Lincoln, Brayford Pool, Lincoln LN6 7TS, UK
N. Yu. Makarenko
Affiliation:
Sobolev Institute of Mathematics, Novosibirsk, 630 090, Russia ([email protected]; [email protected])
P. Shumyatsky
Affiliation:
Department of Mathematics, University of Brasilia, DF 70910-900, Brazil ([email protected])

Abstract

Suppose that a finite group G admits an automorphism of order 2n such that the fixed-point subgroup of the involution is nilpotent of class c. Let m = ) be the number of fixed points of . It is proved that G has a characteristic soluble subgroup of derived length bounded in terms of n, c whose index is bounded in terms of m, n, c. A similar result is also proved for Lie rings.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 2017 

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