**Speaker:** Karen Yeats (University of Waterloo, Faculty of Mathematics)

**Venue: **Virtual and in 20 Garden Street, Room G10

**Title: **Some combinatorics of Wilson loop diagrams

**Abstract:** Wilson loop diagrams can be used to study amplitudes in N=4

SYM. I will set them up and talk about some of their combinatorial

aspects, such as how many Wilson loop diagrams give the same positroid

and how to combinatorially read off the dimension and the denominators

for the integrands.

***This talk will be hybrid. Talk will be held at CMSA (20 Garden St) Room G10.*

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