2015
Oct
29

# Colloquium: Vincent Guirardel (Universite de Renne 1), "Avatars of small cancellation"

2:30pm to 3:30pm

Title: Avatars of small cancellation
Abstract:
In general, given a finite presentation of a group, it is very difficult (in fact algorithmically impossible) to understand the group it defines. Small cancellation theory was developped as a combinatorial condition on a presentation that allows one to understand the group it represents. This very flexible construction has many applications to construct examples of groups with specific features.