Date/Time
Date(s) - 03/12/2024
11:30 am - 12:30 pm

Location: Hamilton Hall, Room 312

Speaker: Brett Nasserden (McMaster University)

Title: Some progress on Fulton’s local-global question

Abstract: Fulton asked if a variety which locally looks like a quotient of a smooth variety by finite group is globally a quotient of a smooth variety by a finite group. In this talk we will discuss recent progress on this question in the case of surfaces with finite abelian quotient singularities, which allows one to reinterpret Fulton’s question in terms of intersection theory, or Brauer groups, or derived categories of singularities.