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일정시작 2021-10-26
일정종료 2021-10-28
배경색상 #77CC00
반복주기 2
반복단위 1.일(단위)

Date :  Lecture 1 : 2021/10/26 (Tue) 10:00-11:30

            Lecture 2 : 2021/10/28 (Thu) 10:00-11:30

Place :  Zoom (ID: 642 675 5874   no password,  Login required)

Speaker :  Ryo Sato (Kyoto university)

Title :  Feigin-Semikhatov duality in W-superalgebras

Abstract:

W-superalgebras are a large class of vertex superalgebras which generalize affine Lie superalgebras and the Virasoro algebras. It has been known that princial W-algebras satisfy a certain duality relation (Feigin-Frenkel duality) which can be regarded as a quantization of the geometric Langlands correspondence. Recently, D. Gaiotto and M. Rapčák found dualities between more general W-superalgebras in relation to certain four-dimensional supersymmetric gauge theories. A large part of thier conjecture is proved by T. Creutzig and A. Linshaw, and a more specific subclass (Feigin-Semikhatov duality) is done by T. Creutzig, N. Genra, and S. Nakatsuka in a different way. In this talk I will review the Feigin-Semikhatov duality between certain subregular W-algebras and principal W-superalgebras, and discuss the usage of relative semi-infinite cohomology. This talk is based on a joint work with T. Creutzig, N. Genra, and S. Nakatsuka.

 

 

 

 

 


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