## Columbia Algebraic Geometry Seminar## Spring 2008 |
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The Columbia Algebraic Geometry Seminar takes place on Fridays from 2.15-3.15 pm in 417 Mathematics Hall on the Columbia campus. All are welcome.

January 25 | David Swinarski | Columbia | GIT stability of weighted pointed curves |

February 1 | Chenyang Xu | Princeton | Congruence for rational points over finite fields and coniveau over local fields |

February 8 | Barbara Fantechi | SISSA/IAS | Riemann-Roch theorem for virtually smooth schemes |

February 15 | Lothar Göttsche | ICTP/IAS | K-theoretic Donaldson invariants |

February 22 | Hiraku Nakajima | Kyoto/IAS | Perverse coherent sheaves on blowup surfaces |

February 29 | Joint Columbia-Courant-Princeton Algebraic Geometry Seminar at Columbia: | ||

12 pm | Mikhail Kapranov | Yale | Noncommutative differential operators, unparametrized paths and Hodge structures |

2:30 pm | James McKernan | MIT | The cone theorem revisited |

4 pm | Kiran Kedlaya | MIT | Measuring wild ramification using rigid geometry |

March 7 | Behrang Noohi | FSU | Group actions on stacks; see also B. Noohi's special seminar on String topology for stacks |

March 14 | Ravi Vakil | Stanford | Reimagining universal covers and fundamental groups in algebraic and arithmetic geometry |

March 21 | Spring break | No seminar | |

March 28 | Constantin Teleman | Berkeley | Semisimple quantum cohomology determines the Gromov-Witten invariants |

April 4 | No seminar this week, | but, | Daniel Allcock is speaking at exactly the same time in the Geometric Topology Seminar. |

April 11 | Bumsig Kim | KIAS | A compactification of the space of maps from curves |

April 18 | Mike Roth | Queen's | Cup products for line bundles on complete flag varieties |

April 25 | James Borger | ANU | Witt vectors, Lambda-rings, and absolute algebraic geometry |

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.

This page is maintained by Michael Thaddeus and was shamelessly, indirectly copied from Pasha Belorousski.