Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-24T01:46:52.612Z Has data issue: false hasContentIssue false

A Frattini-like subgroup

Published online by Cambridge University Press:  24 October 2008

M. J. Tomkinson
Affiliation:
Mathematics Dept., University of Glasgow

Extract

The Frattini subgroup φ(G) of a group G is the intersection of G and all its maximal subgroups. The following results for finite groups are well known:

THEOREM A0. If G is a finite group, then the following three conditions are equivalent:

(i) G is nilpotent,

(ii) G/φ(G) is nilpotent,

(iii) φ(G) ≥ G′.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1975

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Gardiner, A. D., Hartley, B. and Tomkinson, M. J.Saturated formations and Sylow structure in locally finite groups. J. Algebra 17 (1971), 177211.CrossRefGoogle Scholar
(2)Hartley, B.-abnormal subgroups of certain locally finite groups. Proc. London Math. Soc. (3) 23 (1971), 128158.CrossRefGoogle Scholar
(3)Hartley, B.Sylow theory in locally finite groups. Compositio Math. 25 (1972), 263280.Google Scholar
(4)Hartley, B. and McDougall, D.Injective modules and soluble groups satisfying the minimal condition for normal subgroups. Bull. Aust. Math. Soc. 4 (1971), 113135.CrossRefGoogle Scholar
(5)Hartley, B. and Tomkinson, M. J. Splitting over the nilpotent and hypercentral residuals. To appear.Google Scholar
(6)Heineken, H. and Mohamed, I. J.A group with trivial centre satisfying the normalizer condition. J. Algebra 10 (1968), 368376.CrossRefGoogle Scholar
(7)Kargapolov, M. I.On the theory of Z¯-groups. Dokl. Akad. Nauk. SSSR 125 (1959), 255257 (Russian).Google Scholar
(8)Robinson, D. J. S.Residual properties of some classes of infinite soluble groups. Proc. London Math. Soc. (3) 17 (1968), 495520.CrossRefGoogle Scholar
(9)Robinson, D. J. S.Finiteness Conditions and Generalized Soluble Groups. Part 1. Springer (1972).CrossRefGoogle Scholar
(10)Robinson, D. J. S.Finiteness Conditions and Generalized Soluble Groups. Part 2. Springer (1972).CrossRefGoogle Scholar
(11)Šunkov, V. P.On locally finite groups of finite rank. Algebra i Logika Sem. 10 (1971), 199225 [Russian].Google Scholar
(12)Tomkinson, M. J.Formations of locally soluble FC-groups. Proc. London Math. Soc. (3) 19 (1969), 675708.CrossRefGoogle Scholar