Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-25T13:49:54.606Z Has data issue: false hasContentIssue false

Existentially closed central extensions of locally finite p-groups

Published online by Cambridge University Press:  24 October 2008

Felix Leinen
Affiliation:
Johannes-Gutenberg-Universität, 6500 Mainz, West Germany
Richard E. Phillips
Affiliation:
Michigan State University, East Lansing, MI 48824, U.S.A.

Extract

Throughout, p will be a fixed prime, and will denote the class of all locally finite p-groups. For a fixed Abelian p-group A, we let

where ζ(P) denotes the centre of P. Notice that A is not a class in the usual group-theoretic sense, since it is not closed under isomorphisms.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1986

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] Beyl, F. R. and Tappe, J.. Group Extensions, Representations, and the Schur Multiplicator. Lecture Notes in Math. vol. 958 (Springer-Verlag, 1982).CrossRefGoogle Scholar
[2] Berricik, A. J. and Downey, R. G.. Perfect McLain groups are superperfect. Bull. Austral. Math. Soc. 29 (1984), 249257.Google Scholar
[3] Blackburn, N.. Some homology groups of wreath products. Ill. J. Math. 16 (1972), 116129.Google Scholar
[4] Hall, P.. Some constructions for locally finite groups. J. London Math. Soc. 34 (1959), 305319.CrossRefGoogle Scholar
[5] Hall, P.. Wreath powers and characteristically simple groups. Proc. Cambridge Philos. Soc. 58 (1962), 170184.CrossRefGoogle Scholar
[6] Hall, P.. On the embedding of a group in a join of given groups. J. Austral. Math. Soc. 17 (1974), 434495.CrossRefGoogle Scholar
[7] Hickin, K.. Universal locally finite central extensions of groups. Proc. London Math. Soc. (3) 52 (1986), 5372.CrossRefGoogle Scholar
[8] Hirschfeld, J. and Wheeler, W. H.. Forcing, arithmetic, division rings. Lecture Notes in Math. vol. 454 (Springer-Verlag, 1975).CrossRefGoogle Scholar
[9] Leinen, F.. Existentially closed LX-groups. Rend. Sem. Mat. Univ. Padova 75 (1986), 191226.Google Scholar
[10] Leinen, F.. Existentially closed groups in locally finite group classes. Comm. Algebra 13 (1985), 19912024.CrossRefGoogle Scholar
[11] Leinen, F.. Existentially closed locally finite p-groups. J. Algebra (In the Press.)Google Scholar
[12] Maier, B.. Existenziell abgeschlossene lokal endliche p-Gruppen. Arch. Math. 37 (1981), 113128.CrossRefGoogle Scholar
[13] McLain, D. H.. A characteristically-simple group. Proc. Cambridge Philos. Soc. 50 (1954), 641642.CrossRefGoogle Scholar
[14] Neumann, P. M.. On the structure of standard wreath products of groups. Math. Z. 84 (1964), 343373.CrossRefGoogle Scholar
[15] Phillips, R. E.. Existentially closed locally finite central extensions; multipliers and local systems. Math. Z. 187 (1984), 383392.CrossRefGoogle Scholar
[16] Robinson, D. J. S.. Finiteness Conditions and Locally Finite Groups. Part 1 (Springer. Verlag, 1972).Google Scholar
[17] Wiegold, J.. The Schur multiplier: an elementary approach. In Groups – St Andrews 1981, L.M.S. Lecture Notes Series no. 71 (Cambridge University Press, 1982), 137154.CrossRefGoogle Scholar