GTM seminar

Speaker: Evangelos Routis (Kavli IPMU)
Title: Weighted Compactifications of Configuration Spaces
Date (JST): Thu, Dec 10, 2015, 15:30 - 17:00
Place: Seminar Room A
Abstract: In the early 90's, Fulton and MacPherson provided a natural and beautiful way of compactifying the configuration space F(X,n) of n distinct labeled points on an arbitrary nonsingular variety. In this talk, I will present an alternate compactification of F X,n), which generalizes the work of Fulton and MacPherson and is parallel to Hassett's weighted generalization of the moduli space of n-pointed stable curves. After discussing its main properties, I will give a presentation of its intersection ring and as an application, I will describe the intersection ring of Hassett's spaces in genus 0. Finally, as time permits, I will discuss some additional moduli problems associated with weighted compactifications.