*Date* |
*Speaker* | *Seminar* | *Title* |

Friday, September 06, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Gilyoung Cheong**
*University of Michigan* |
Combinatorics |
Cycle index and Cohen-Lenstra distributions given by p-adic matrices |

Friday, September 13, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Brendon Rhoades**
*UC San Diego* |
Combinatorics |
Spanning subspace configurations |

Friday, September 20, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Christopher Eur**
*UC Berkeley* |
Combinatorics |
Simplicial generation of Chow rings of matroids |

Friday, September 27, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Hanbaek Lyu**
*UCLA* |
Combinatorics |
Phase transition in random contingency tables with non-uniform margins |

Friday, October 04, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**David Galvin**
*University of Notre Dame* |
Combinatorics |
Total non-negativity of some combinatorial matrices |

Friday, October 11, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Emily Barnard**
*De Paul University* |
Combinatorics |
Graph Associahedra and the Poset of Maximal Tubings |

Friday, October 18, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Jake Levinson**
*University of Washington* |
Combinatorics |
A topological proof of the Shapiro-Shapiro Conjecture |

Friday, October 25, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Alexander Garver**
*University of Michigan* |
Combinatorics |
Chapoton triangles and nonkissing complexes |

Friday, November 01, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Christopher Ryba**
*MIT* |
Combinatorics |
Combinatorics via Deligne Categories |

Friday, November 08, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Bruce Sagan**
*Michigan State University* |
Combinatorics |
Combinatorial and algebraic interpretations of Lucas analogues |

Friday, November 15, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Terrence George**
*Brown University* |
Combinatorics |
Spectra of biperiodic planar networks |

Friday, November 22, 2019 Start: 3:00 PM
Location: 4096 East Hall |
**Helen Jenne**
*University of Oregon* |
Combinatorics |
Combinatorics of the double-dimer model |

Friday, January 17, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Michael Shapiro**
*Michigan State U.* |
Combinatorics |
Generalized cluster structures in the space of periodic staircase matrices |

Friday, January 24, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Lauren Williams**
*Harvard U.* |
Combinatorics |
Probability and combinatorics: hopping particles and Macdonald polynomials |

Friday, January 31, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Nir Gadish**
*MIT* |
Combinatorics |
The “generating function” of configuration spaces, as a source for explicit formulas and representation stability |

Friday, February 07, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Florian Frick**
*Carnegie Mellon University* |
Combinatorics |
Metric thickenings and combinatorial applications |

Friday, February 14, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**David Speyer**
*University of Michigan* |
Combinatorics |
The degree of a Grothendieck polynomial |

Friday, February 21, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Daping Weng**
*Michigan State University* |
Combinatorics |
TBA |

Friday, March 13, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Chris Fraser**
*University of Minnesota* |
Combinatorics |
TBA |

Friday, March 20, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Graham White**
*Indiana University, Bloomington* |
Combinatorics |
TBA |

Friday, March 27, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Kyungyong Lee**
*University of Alabama* |
Combinatorics |
TBA |

Friday, April 03, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**David Anderson**
*Ohio State University* |
Combinatorics |
TBA |

Friday, April 10, 2020 Start: 3:00 PM
Location: 4096 East Hall |
**Maria Cueto**
*Ohio State University* |
Combinatorics |
TBA |