Stability in the homology of configuration spaces
Jenny Wilson (Stanford)
Location: HILL 705
Date & time: Wednesday, 13 December 2017 at 3:30PM - 4:30PM
Abstract: This talk will illustrate some patterns in the homology of the space F_k(M) of ordered k-tuples of distinct points in a manifold M. For a fixed manifold M, as k increases, we might expect the topology of the configuration spaces F_k(M) to become increasingly complicated. Church and others showed, however, that when M is connected and open, there is a representation-theoretic sense in which the homology groups of these configuration spaces stabilize. In this talk I will explain these stability patterns, and describe higher-order stability phenomena -- relationships between unstable homology classes in different degrees -- established in recent work joint with Jeremy Miller.
This project was inspired by work-in-progress of Galatius--Kupers--Randal-Williams.