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DTSTART:20230312T070000
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DTSTART;TZID=America/Toronto:20230531T133000
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URL:https://uwaterloo.ca/pure-mathematics/events/hadamard-learning-seminar-
 3
SUMMARY:Hadamard Learning Seminar
CLASS:PUBLIC
DESCRIPTION:ADA CHAN\, YORK UNIVERSITY\n\n\"COMPLEX HADAMARD MATRICES AND A
 SSOCIATION SCHEMES\, PART 1\"\n\nComplex Hadamard matrices and spin models
  are special cases of type-II\nmatrices. In the 1980s\, Vaughan Jones used
  spin models to construct\nlink invariants and representations of braid gr
 oups. The term _type\nII_ was coined after the second Reidemeister move of
  link diagrams. In\n1990s\, Jaeger and Nomura discovered the surprising co
 nnection of spin\nmodels and association schemes.
DTSTAMP:20260504T231607Z
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