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X-FROM-URL:https://eom.sdu.dk/events/ical/e7f3ecb5-a027-43a6-883e-4fd9fe23
 16b4
X-WR-CALNAME:QM Research Seminar: Braid Group Representations and Orbifold
 ization
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TZID:Europe/Copenhagen
X-LIC-LOCATION:Europe/Copenhagen
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DTSTAMP:20260602T163052Z
DTSTART:20261028T030000
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DTSTART:20260325T020000
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DESCRIPTION:[b]Speaker: Jiahe Cai[/b]\, University of Copenhagen [nl]\n[b]
 Abstract:[/b][nl]\nLet G be a finite group. By evaluation of a once-exten
 ded 3-2-1-dimensional G-equivariant topological field theory Z on the cir
 cle one obtains a G-ribbon category C. From a homotopy G-fixed point in t
 his G-ribbon category C\, we can construct two representations of framed 
 braid groups fBn with n strands for any n ≥ 1: 1) We can construct a repr
 esentation of fBn by evaluating Z on genus zero surfaces with G-bundle de
 coration. 2) We can orbifoldize the G-ribbon category C and obtain the fB
 n representation algebraically by using the braiding and twist of the orb
 ifold category. We prove that these two representations are equivalent.\n
 [nl]
DTEND:20231005T140000Z
DTSTAMP:20260602T163052Z
DTSTART:20231005T130000Z
LOCATION:Syddansk Universitet\, Campusvej 55\, 5230\, Odense M
SEQUENCE:0
SUMMARY:QM Research Seminar: Braid Group Representations and Orbifoldizati
 on
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