Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-27T20:31:52.009Z Has data issue: false hasContentIssue false

Finitely generated cyclic extensions of free groups are residually finite

Published online by Cambridge University Press:  17 April 2009

Gilbert Baumslag
Affiliation:
Rice University, Houston, Texas, USA.
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We establish the result that a finitely generated cyclic extension of a free group is residually finite. This is done, in part, by making use of the fact that a finitely generated module over a principal ideal domain is a direct sum of cyclic modules.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1971

References

[1]Baumslag, Gilbert, “On generalised free products”, Math. Z. 78 (1962), 423438.CrossRefGoogle Scholar
[2]Baumslag, Gilbert, “On the residual finiteness of generalised free products of nilpotent groups”, Trans. Amer. Math. Soc. 106 (1963), 193209.CrossRefGoogle Scholar
[3]Baumslag, Gilbert, “Some subgroup theorems for free -groups”, Trans. Amer. Math. Soc. 108 (1963), 516525.Google Scholar
[4]Chandler, Bruce, “A representation of a generalized free product in an associative ring”, Comm. Pure Appl. Maths. 21 (1968), 271288.CrossRefGoogle Scholar
[5]Frederick, Karen N., “The Hopfian property for a class of fundamental groups”, Comm. Pure Appl. Maths. 16 (1963), 18.CrossRefGoogle Scholar
[6]Gruenberg, K.W., “Residual properties of infinite soluble groups”, Proc. London Math. Soc. (3) 7 (1957), 2962.CrossRefGoogle Scholar
[7]Higman, Graham, “A remark on finitely generated nilpotent groups”, Proc. Amer. Math. Soc. 6 (1955), 284285.CrossRefGoogle Scholar
[8]Jacobson, Nathan, Lectures in abstract algebra, Vol. II (Van Nostrand, New York, Toronto, London, 1953).CrossRefGoogle Scholar
[9]Magnus, Wilhelm, “Beziehungen zwischen Gruppen und Idealen in einem speziellen Ring”, Math. Ann. 111 (1935), 259280.CrossRefGoogle Scholar