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SUMMARY:Konrad Waldorf (University of Greifswald)
DTSTART:20221130T170000Z
DTEND:20221130T180000Z
DTSTAMP:20260423T040009Z
UID:TQFT/71
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TQFT/71/">A 
 representation of the string 2-group</a>\nby Konrad Waldorf (University of
  Greifswald) as part of Topological Quantum Field Theory Club (IST\, Lisbo
 n)\n\nLecture held in Room 3.10 (3rd floor\, Mathematics Department\, Inst
 ituto Superior Técnico).\n\nAbstract\nThe string 2-group is supposed to p
 lay the role of the spin group\, but in string theory instead of quantum m
 echanics. Several aspects of this analogy are by now well understood. In t
 his talk I will talk about joint work with Matthias Ludewig and Peter Kris
 tel on a further aspect\, namely the representation theory of the string 2
 -group. This was an open problem for a long time. Our solution combines hi
 gher-categorical topology with operator algebras\, and allows a neat defin
 ition of Stolz-Teichner's "stringor bundle" as an associated 2-vector bund
 le.\n
LOCATION:https://researchseminars.org/talk/TQFT/71/
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