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Subgroups with centre in HNN groups

Published online by Cambridge University Press:  09 April 2009

A. Karrass  and
D. Solitar
D. Solitar
Affiliation:
Department of Mathematics, York University, Downsview, Ontario M3J 1PS, Canada.
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Abstract

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A subgroup with non-trivial centre in a one-relator group is shown to be a treed HNN group (graph product) with infinite cyclic vertices. Moreover, subgroups with non-trivial centre in HNN groups are also examined.

Information

Type
Research Article
Information
Journal of the Australian Mathematical Society , Volume 24 , Issue 3 , November 1977 , pp. 350 - 361
Copyright
Copyright © Australian Mathematical Society 1977

References

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