Nicholas Proudfoot (University of Oregon) - Zonotopal algebra and the cohomology of graphical configuration spaces

Abstract:  I will introduce a certain configuration space associated with a graph, and compute its cohomology ring.  It turns out to be related to internal zonotopal algebras, which were introduced in the context of approximation theory and show up in many different contexts.

This is joint work with Colin Crowley, Galen Dorpalen-Barry, and Andre Henriques.