## Columbia Algebraic Geometry Seminar## Spring 2017 |
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The Columbia Algebraic Geometry Seminar takes place on Fridays at 3:30 pm in 417 Mathematics Hall on the Columbia campus. All are welcome. Tea is served at 3 pm in 508 Mathematics Hall.

January 20 | No seminar | ||

January 27 | No seminar | All-day FRG workshop on wall-crossing in enumerative geometry | |

February 3 | Angelo Vistoli | SNS, Pisa | Fundamental gerbes |

February 10 | Andrew Obus | Virginia | Good and bad reduction of dynatomic modular curves |

February 17 | Special double-header event; 5 pm talk in 203 Math | ||

3:30 pm | Dmitri Orlov | Steklov | Geometric realization of noncommutative varieties, phantoms, and Krull-Schmidt partners |

5 pm | Dennis Gaitsgory | Harvard | The Tamagawa number formula over function fields (Kolchin Memorial Lecture) |

February 24 | Brooke Ullery | Harvard | Normality of secant varieties |

March 3 | Gabriele di Cerbo | Columbia | Boundedness of Calabi-Yau pairs |

March 10 | Benjamin Bakker | Georgia | A global Torelli theorem for singular symplectic varieties |

March 17 | No seminar | Spring break | |

March 24 | Philip Engel | Harvard | Enumerating triangulations of surfaces |

March 31 | Burt Totaro | UCLA | Hodge theory of classifying spaces |

April 7 | Tom Nevins | Illinois | Compactifications and cohomology of quiver varieties |

April 14 | Lothar Göttsche | ICTP | Virtual refinements of the Vafa-Witten formula |

April 21 | No seminar | AGNES at Stony Brook | |

April 28 | Special double-header event | ||

2 pm | Kirsten Wickelgren | Ga. Tech | Arithmetic count of the lines on a smooth cubic surface |

3:30 pm | Frans Oort | Utrecht | Algebraic curves with automorphisms |

Schedules from the past: F '97 - F '00, S '01, F '01, S '02, F '02, S '03, F '03, S '04, F '04, S '05, F '05, S '06, F '06, S '07, F '07, S '08, F '08, S '09, F '09, S '10, F '10, S '11, F '11, S '12, F '12, S '13, F '13, S '14, F '14, S '15, F '15, S '16, F '16

This page is maintained by Michael Thaddeus. The design is due to Pasha Belorousski.