Algebraic Geometry Seminar

Date: Tuesday, Nov 1, 2022

Time: 3:30PM - 4:30PM

Location: LCB 323

Daniel Bragg

University of Utah

Title	A Stacky Murphy’s Law for the Stack of Curves
Abstract	We show that every Deligne-Mumford gerbe over a field occurs as the residual gerbe of a point of the moduli stack of curves. Informally, this means that the moduli space of curves fails to be a fine moduli space in every possible way. We also show the same result for a list of other natural moduli problems. This is joint work with Max Lieblich.

Algebraic Geometry