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Moyennabilite interieure et extensions HNN by Stalder, Yves is a scholarly article available to read on EtoBox.

What is Moyennabilite interieure et extensions HNN about?

We present sufficient conditions for HNN extensions to be inner amenable, respectively ICC, which give necessary and sufficient criteria among Baumslag-Solitar groups. We deduce that such a group, viewed as acting on its Bass-Serre tree, contains non trivial elements which fix unbounded subtrees.

Author

Stalder, Yves

Published

2005

Language

EN