Canad. Math. Bull. 41(1998), 423-433
Printed: Dec 1998
Using the theory of $p$-adic Lie groups we give conditions for a
finitely generated group to admit a splitting as a non-trivial
free product with amalgamation. This can be viewed as an extension
of a theorem of Bass.
20E06 - Free products, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations