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BEGIN:VEVENT
SUMMARY:Shashank Kanade (University of Denver)
DTSTART:20200427T203000Z
DTEND:20200427T213000Z
DTSTAMP:20260422T225826Z
UID:KSUAlgSem/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/KSUAlgSem/1/
 ">Tensor categories and vertex operator algebra extensions</a>\nby Shashan
 k Kanade (University of Denver) as part of KSU algebra seminar\n\n\nAbstra
 ct\nAbstract: There are certain fundamental constructions of building new 
 VOAs out of known ones\, namely\, extending\, orbifolding\, taking cosets\
 , quantum Hamiltonian reductions etc. Many of such constructions can be an
 alysed by considering a suitable pair of VOAs (say\, V and W)\, where one 
 is a conformally embedded into another. A basic question then is relating 
 representation categories of V and W. For this\, the language of tensor ca
 tegories is extremely useful. I'll start by explaining the theorem of Huan
 g-Kirillov-Lepowsky that relates the representation categories as abelian 
 categories. I'll then explain several theorems obtained jointly with Creut
 zig and McRae that relate (vertex) tensor structures on these representati
 on categories. Time permitting\, I'll mention applications to concrete exa
 mples.\n
LOCATION:https://researchseminars.org/talk/KSUAlgSem/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yunfeng Jiang (University of Kansas)
DTSTART:20200413T203000Z
DTEND:20200413T213000Z
DTSTAMP:20260422T225826Z
UID:KSUAlgSem/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/KSUAlgSem/2/
 ">Twisted Vafa-Witten invariants and the S-duality conjecture</a>\nby Yunf
 eng Jiang (University of Kansas) as part of KSU algebra seminar\n\nAbstrac
 t: TBA\n
LOCATION:https://researchseminars.org/talk/KSUAlgSem/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yunfeng Jiang (University of Kansas)
DTSTART:20200420T203000Z
DTEND:20200420T213000Z
DTSTAMP:20260422T225826Z
UID:KSUAlgSem/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/KSUAlgSem/3/
 ">Twisted Vafa-Witten invariants and the S-duality conjecture II</a>\nby Y
 unfeng Jiang (University of Kansas) as part of KSU algebra seminar\n\nAbst
 ract: TBA\n
LOCATION:https://researchseminars.org/talk/KSUAlgSem/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jiuzu Hong (University of North Carolina at Chapel Hill)
DTSTART:20200504T203000Z
DTEND:20200504T213000Z
DTSTAMP:20260422T225826Z
UID:KSUAlgSem/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/KSUAlgSem/4/
 ">Conformal blocks for Galois covers of algebraic curves</a>\nby Jiuzu Hon
 g (University of North Carolina at Chapel Hill) as part of KSU algebra sem
 inar\n\n\nAbstract\nThe theory of conformal blocks is important in 2d rati
 onal conformal field theory. It is defined via Wess-Zumino-Witten model.  
 It is related to the geometry of moduli space of algebraic curves. Moreove
 r\, conformal blocks can be identified with generalized theta functions on
  the moduli stack of principle G-bundles. In this talk\, I will talk about
  a twisted theory of conformal blocks attached to Galois covers of algebra
 ic curves\, where twisted Kac-Moody algebra will play key roles. More prec
 isely\, I will explain the propagation and factorization properties\, and 
 locally freeness of the sheaf of twisted conformal blocks on the Hurwitz s
 tack of stable Galois covers of algebraic curves. This talk is based on th
 e joint work with Shrawan Kumar.\n
LOCATION:https://researchseminars.org/talk/KSUAlgSem/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jiuzu Hong (University of North Carolina Chapel Hill)
DTSTART:20200518T203000Z
DTEND:20200518T213000Z
DTSTAMP:20260422T225826Z
UID:KSUAlgSem/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/KSUAlgSem/5/
 ">The generalized theta functions on the moduli stack of torsors over para
 horic group schemes</a>\nby Jiuzu Hong (University of North Carolina Chape
 l Hill) as part of KSU algebra seminar\n\n\nAbstract\nThe theory of confor
 mal blocks is important in 2d rational conformal field theory. It is defin
 ed via WZW model.  It is related to the geometry of moduli space of algebr
 aic curves. Moreover\, conformal blocks can be identified with generalized
  theta functions on the moduli stack of principle G-bundles.\n\nIn the pre
 vious talk\, I explained the generalization of the work of Tsuchiya-Ueno-Y
 amada in a twisted setting. In this talk\, I will continue to explain the 
 identification between twisted conformal blocks and the generalized theta 
 functions on the moduli stack of torsors over parahoric group schemes aris
 ing from Galois cover of curves. This talk will be based on the joint work
  with Shrawan Kumar.\n
LOCATION:https://researchseminars.org/talk/KSUAlgSem/5/
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