Wired groups
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 James Griffin
 Friday 29 January 2010, 14:0015:00
 MR13.
If you have a question about this talk, please contact Chris Bowman.
I’ll introduce families of groups with nice algebraic and homological
properties. I refer to them as “wired” because there are nice
pictorial presentations in terms of blocks sliding along taut wires.
These have a strong resemblance to pure braid diagrams and indeed the
pure braid groups are motivating examples. When we take the homology
the blocks reappear as labels on vertices of trees. I’ll give an
explanation. For the majority of the talk only the basics of group
theory will be required so it should be accessible.
This talk is part of the Junior Algebra/Logic/Number Theory seminar series.
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