## Topology & Geometric Group Theory Seminar

## Spring 2010

### 1:30 – 2:30, Malott 203

Tuesday, May 4

**Victor
Kostyuk**, Cornell University

*An outer space for 2-dimensional right-angled Artin groups*

Charney, Crisp, and Vogtmann defined an outer space for 2-dimensional
right-angled Artin groups. In this talk I'll describe a construction
of a contractible subspace of that outer space on which the pure outer
automorphism group of a 2-dimensional right-angled Artin group acts
properly and some of the properties of that subspace.

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