Algebraic Combinatorics Seminar - Karen Yeats

Title: Some places matroids appear in quantum field theory and some places I would like them to

Abstract:

I will discuss some places matroids have appeared in my work in quantum field theory, including some older work on numerator structure with Dirk Kreimer and some work in progress with Iain Crump on period identities. I will also explain why I think matroids should appear even more. I will not, except in passing, talk about the story of positroids even though they also fit the title. This talk stands alone but is also my response to and reason for requesting David's Jan 16 talk.