Starts 10 Oct 2019 16:00
Ends 10 Oct 2019 17:00
Central European Time
Leonardo Building - Luigi Stasi Seminar Room
Abstract: I will tell you what the incidence coalgebra of a category is, and when a monoidal product on the category turns it into a bialgebra. Trees, skew shapes and bigraphs yield examples. The main result describes the overlap with the theory of Hopf quivers which is surprisingly (for me) singular. Based on joint work with Lucia Rotheray.