Alex Suciu

Abstract:    A finite simplicial graph determines a right-angled Artin group G, with generators corresponding to the vertices, and with a commutation relation for each pair of adjacent vertices. The cohomology ring of G is the exterior Stanley-Reisner ring of the associated flag complex.

In this talk, I will show how to compute various algebraic invariants of the group G (the lower central series quotients, the Chen quotients, and the first resonance variety of the cohomology ring), directly from the graph.

This is joint work with Stefan Papadima; a preprint is available at math.GR/0412520.

Here are some directions to Northeastern University. Lake Hall can be best accessed from the entrance on the corner of Greenleaf Street and Leon Street.