# Fall 2020 Colloquium

The colloquium meets Thursdays at 4:10 pm to 5:00 pm virtually. We will have at least two talks every month. Lectures last 50 minutes and are followed by a short question period. The mathematical public is cordially invited to attend.

Ken Ribet, Colloquium Chair

### Fall 2020

Date | Speaker | Title |
---|---|---|

August 27 | Tatyana Shcherbyna, Princeton University | Random matrix theory and supersymmetry techniques |

September 3 | no colloquium (State of the Department meeting) | |

September 10 | Jeremy Hahn, MIT | Higher algebra in the classification of highly connected manifolds |

September 17 | Corinna Ulcigrai, University of Zürich | *** This talk will be at 3:10PM, not 4:10PM *** Shearing, Ratner properties and slow chaos in surface flows |

September 24 | Mboyo Esole, Northeastern University |
Crepant resolutions of elliptic fibrations and string theory |

October 1 | Jordan Ellenberg, University of Wisconsin | The problem of legislative districting: geometry, complexity, and democracy |

October 8 | Daniel Litt, University of Georgia | Arithmetic topology and the fundamental group |

October 15 | Weinan E, Princeton University | A Mathematical Perspective of Machine Learning |

October 22 | Pamela E. Harris, Williams College | Recent results on Kostant’s partition function |

October 29 | Olof Sisask, Stockholm University, and Thomas Bloom, University of Cambridge (joint colloquium) |
Three-term arithmetic progressions in sets of integers |

November 5 | Shinichi Mochizuki, Research Institute for Mathematical Sciences, Kyoto University |
Classical Roots of Inter-universal Teichmüller Theory |

November 12 | Julia Pevtsova, University of Washington | Cohomology of finite dimensional algebras |

November 19 | Emily Riehl, Johns Hopkins University | Elements of ∞-Category Theory |

November 26 | No colloquium, Thanksgiving | |

December 3 | Sunčica Čanić, UC Berkeley | Moving Boundary Problems and Medicine |

December 10 | RRR Week [but there might be a talk] |