Murray Elder
The Dehn function of Stallings' group

tues oct 7 2pm 67-641

abstract: I will define the Dehn function of a finitely presented group - a type of measure of complexity of the group - 
and prove that a famous example of John Stallings' has a quadratic Dehn function.

This is joint work with Will Dison, Tim Riley and Robert Young, and the paper is at http://arxiv.org/abs/0712.3877

 all welcome 


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