Date
Wed, 18 Feb 2015
Time
16:00 - 17:00
Location
C1
Speaker
Alexander Margolis
Organisation
Oxford

In Bass-Serre theory, one derives structural properties of groups from their actions on simplicial trees. In this talk, we introduce the theory of groups acting on $\mathbb{R}$-trees. In particular, we explain how the Rips machine is used to classify finitely generated groups which act freely on $\mathbb{R}$-trees.

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