Harvard/MIT Algebraic Geometry Seminar

Fall 2017
Tuesdays at 3 pm

The Harvard/MIT Algebraic Geometry Seminar will alternate between MIT (4-237) and Harvard (Science Center Hall A).

• Sep 122017 Hall AHarvard Rohini Ramadas, Harvard
  Dynamics on the moduli space of point-configurations on the Riemann Sphere abstract± Hurwitz correspondences are a special family of algebraic discrete dynamical systems on the moduli space M_{0,n} parametrizing configurations of n points on P^1. Hurwitz correspondences arise in the study of the topological dynamics of self-maps of P^1. Dynamical degrees are numerical invariants associated to algebraic discrete dynamical systems. I will discuss the dynamical degrees of Hurwitz correspondences.
• Sep 192017 4-237MIT Giulia Sacca, MIT
  Degenerations of hyperkahler manifolds abstract±    The problem of understanding semistable degenerations of K3 surfaces has been greatly studied and is completely understood (Kulikov-Pinkham-Persson). The aim of this talk is to presentjoint work with J. Kollár, R. Laza, and C. Voisin generalizing some of these results to higher dimensional hyperkähler (HK) manifolds. I will also present some applications, including a generalization of theorem of Huybrechts to possibly singular symplectic varieties and shortcuts to showing that certain HK manifolds are of a given deformation type.
• Sep 262017 Hall AHarvard Alina Marian, Northeastern
  On the intersection theory of Hilbert schemes of points on a surface abstract± I will describe the structure of natural intersection-theoretic invariants coming from Chern classes of tautological vector bundles over Hilbert schemes of points on a smooth projective surface. The subject has a long history; I will explain aspects of it, as well as recent contributions in joint work with D. Oprea and R. Pandharipande.
• Oct 32017 4-237MIT Yuchen Liu, Yale
  TBA abstract±   
• Oct 102017 SC 411Harvard Man-Wai Cheung, Harvard
  TBA abstract±
• Oct 172017 4-237MIT Dave Jensen, U Kentucky
  TBA abstract±   
• Oct 242017 Hall AHarvard David Hansen, Columbia
  TBA abstract±
• Oct 312017 4-237MIT TBA
  TBA abstract±   
• Nov 72017 Hall AHarvard TBA
  TBA abstract±
• Nov 142017 4-237MIT TBA
  TBA abstract±
• Nov 212017 Hall AHarvard TBA
  TBA abstract±   
• Nov 282017 4-237MIT Valentijn Karemaker, U Penn
  TBA abstract±   
• Dec 52017 4-237MIT Felix Janda, U Michigan
  TBA abstract±   
• Dec 122017 Hall AHarvard Marco Gualtieri, U Toronto
  TBA abstract±
• Dec 192017 4-237MIT TBA
  TBA abstract±

This seminar is organized by Joe Harris (Harvard), Philip Engel (Harvard), Brooke Ullery (Harvard), Davesh Maulik (MIT), Georg Oberdieck (MIT), Dhruv Ranganathan (MIT). This seminar is supported in part by grants from the NSF. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.