University of Birmingham > Talks@bham > Algebra Seminar > A class of groups universal for free R-tree actions

## A class of groups universal for free R-tree actionsAdd to your list(s) Download to your calendar using vCal - Thomas Müller, Queen Mary, University of London
- Thursday 14 January 2010, 16:00-17:00
- Watson Building, Lecture Room A.
If you have a question about this talk, please contact Simon Goodwin. I report on a new construction in group theory giving rise to a kind of continuous analogue of free groups. More explicitly, given any (discrete) group _{G}, which turns
out to be transitive. Analysis of these groups RF(G) is difficult. However, conjugacy of hyperbolic elements is understood, as are the centralizers and normalizers of hyperbolic elements; moreover, we show that RF-groups and their associated -trees are universal (with respect to inclusion) for free R-tree actions. Furthermore, we prove
thatR| and that non-trivial normal subgroups of This talk is part of the Algebra Seminar series. ## This talk is included in these lists:Note that ex-directory lists are not shown. |
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