On the uniqueness of HNN decompositions of a group

DOI10.1016/0022-4049(91)90088-JzbMath0792.20028OpenAlexW1969048642MaRDI QIDQ1181451

Magnhild Lien, John G. Ratcliffe

Publication date: 27 June 1992

Published in: Journal of Pure and Applied Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0022-4049(91)90088-j

zbMATH Keywords

splitting theoremHNN-extension3-manifoldHNN decompositionsnonseparating annulus

Mathematics Subject Classification ID

Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations (20E06)

Cites Work

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• A New Proof of the Annulus and Torus Theorems
• Free Surfaces in S 3

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