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The singularity obstruction for group splittings

By G.A. Niblo

Abstract

We study an obstruction to splitting a finitely generated group G as an amalgamated free product or HNN extension over a given subgroup H and show that when the obstruction is "small" G splits over a related subgroup. Applications are given which generalise decomposition theorems from low dimensional topology

Topics: QA
Year: 2002
OAI identifier: oai:eprints.soton.ac.uk:29818
Provided by: e-Prints Soton

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Citations

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