mb139's list 2011-08-01 16:00: Intersecting set systems and Chvatal's conjecture (Sean Eberhard) 2011-08-01 16:30: The covering map from the upper half plane to the plane minus a triangular lattice (Billy Woods and Polly Brownlee) 2011-08-02 14:30: Coalgebras and paths (Anja Komitar and Francesca Spivak) 2013-04-12 11:00: What can Kashiwara operators do for physics? (Marj Batchelor, DPMMS) 2013-05-13 11:00: Crystal bases, probability measures on path spaces, variations on the theme of path integrals for quantum mechanics. (Marj Batchelor, DPMMS) 2014-03-24 11:30: An introduction to the Langlands programme 1: Classical class field theory (Dr. Fei Xu, Capital Normal University, Beijing) 2014-03-25 11:30: An introduction to the Langlands programme 2: L-functions for GL(n) (Dr. Fei Xu, Capital Normal University, Beijing) 2014-03-26 11:30: An introduction to the Langlands programme 3: Langlands Programme for GL(n) (Dr. Fei Xu, Capital Normal University, Beijing) 2017-07-05 15:00: Two two categories of algebras and corresponding categories of coalgebras and their relationship with measuring coalgebras and comodules. (Marjorie Batchelor)