For 2017 Fall semester, from 11-Sep 2017 to 21-Nov 2017, the time and venue are as the following:

**Time:** Wednesday afternoon **13:00-15:00**.

**Venue:** School of Mathematics SJTU, Room-1106.

Time/speaker | Venue | Title/Abstract |
---|---|---|

Sep 13, 2017, 13:00-15:00 | Room-1106 | Introduction on conjugacy classes of finite coxeter groups. |

Ma Jia-Jun | We will discuss the geometric interpretation of the length function of finite Coxeter groups. | |

Sep 20, 2017, 13:00-15:00/Ma Jia-Jun | Room-1106 | Geometric interpretation of the length function. (cont.) |

Sep 27, 2017, 14:00-15:00/Ma Jia-Jun | Room-1106 | Proof of the main theorem on minimal length elements (for finite Coxeter group) |

Oct 4, 2017 | Cancelled due to the national day holiday. | |

Oct 11, 2017 | Cancelled due to an event of the department. | |

Oct 18, 13:00-15:00/Zhang Guanglian | Room-1106 | Elliptic elements in Weyl groups |

Oct 25, 13:00-15:00/Zhang Guanglian | Room-1106 | Good elements in Weyl groups |

Nov 1, 13:00-15:00/Qin Fan | Room-1106 | Introduction to affine Weyl groups. |

Nov 8, 13:00-15:00/Qin Fan | Room-1106 | minimal length element in affine groups. |

Nov 15, 13:00-15:00/Qin Fan | Room-1106 | minimal length element in affine groups (cont.) |

Nov 22 | Cancelled | |

Nov 29 13:00-15:00/Chen Miaofen | Room-1106 | Straight conjugacy class |

Dec 6 13:00-15:00/Chen Miaofen | Room-1106 | Straight conjugacy class and its relation to other topics. |

Dec 13: 13:00-15:00/ Ma Jia-Jun | Room-1106 | Classification of nice elements. |

Dec 20 10:00-12:00/ Ma Jia-Jun | Room-1106 | Cocenter of an affine Hecke algebra. |