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About
President
Governance
Partner Institutions
Visit
People
Management
Faculty
Postdocs
Visiting Scholars
Staff
Research
Research Groups
Courses
Seminars
Join Us
Faculty
Postdocs
Students
Events
Conferences
Workshops
Forum
Life @ BIMSA
Accommodation
Transportation
Facilities
Tour
News
News
Announcement
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Qiuzhen College, Tsinghua University
Yau Mathematical Sciences Center, Tsinghua University (YMSC)
Tsinghua Sanya International  Mathematics Forum (TSIMF)
Shanghai Institute for Mathematics and  Interdisciplinary Sciences (SIMIS)
BIMSA > Category and Topological Order Seminar Abelian duality in topological field theory
Abelian duality in topological field theory
Organizer
Hao Zheng
Speaker
Yu Leon Liu
Time
Tuesday, April 11, 2023 9:00 AM - 11:00 AM
Venue
1129B
Abstract
We prove a topological version of abelian duality where the gauge groups are finite abelian. The theories are finite homotopy TFTs, topological analogues of the p-form U(1) gauge theories and a generalization of abelian Dijkgraaf-Witten theories. We extend such duality to a subset of higher-group symmetries, which goes by the name of π-finite spectra. Furthermore, I will discuss the relation between this duality and gauging/ungauging in 2, 3 dimensions.
Beijing Institute of Mathematical Sciences and Applications
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