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DTSTART:20230312T070000
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DTSTART:20221106T060000
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DTSTART;TZID=America/Toronto:20231005T140000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-an
 d-enumerative-combinatorics-seminar-karen-yeats
SUMMARY:Algebraic and Enumerative Combinatorics Seminar - Karen Yeats
CLASS:PUBLIC
DESCRIPTION:TITLE: Diagrammatic boundary calculus for Wilson loop diagrams\
 n\nSPEAKER:\n Karen Yeats\n\nAFFILIATION:\n University of Waterloo\n\nLOCA
 TION:\n MC 6029\n\nThere will be a pre-seminar presenting relevant backgro
 und at the\nbeginning graduate level starting at 1pm.\n\nABSTRACT: This ta
 lk is about a different part of the quantum field\ntheory story than I usu
 ally talk about.  Wilson loop diagrams can be\nused to index amplitudes i
 n a theory known as N=4 SYM.  Suitably nice\nWilson loop diagrams are als
 o associated to positroids.  For both\nmathematical and physical reasons 
 it would be nice to have a\ndiagrammatic understanding of the boundaries o
 f the positroid cells of\nall co-dimensions.  While we do not yet have a 
 full understanding\, we\ncan build many boundaries with certain diagrammat
 ic moves.\n\nJoint work with Susama Agarwala and Colleen Delaney.
DTSTAMP:20260403T151242Z
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