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Configuration spaces and braid groups of graphs
Geometry/Topology| Speaker: | Aaron Abrams, U.C.Berkeley |
| Location: | 493 Kerr |
| Start time: | Wed, Jun 14 2000, 4:10PM |
Description
The classical $n$-string braid group can be
described as the fundamental group of a certain topological
space, namely the configuration space of $n$ points in the
plane. From this point of view we develop a theory of braid
groups of graphs, based on studying the configuration spaces
of points in a graph. A variety of topological, geometric,
algebraic, and combinatorial properties will be
investigated, and examples will be emphasized.