## Scales for co-compact embeddings of virtually free groups

- Udo Baumgartner
- 2008

We define for a compactly generated totally disconnected locally compact group a graph, called a rough Cayley graph, that is a quasi-isometry invariant of the group. This graph carries information about the group structure in an analogue way as the ordinary Cayley graph for a finitely generated group. With this construction the machinery of geometric group… (More)

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