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Disconnected Gauge Groups and Categorical Symmetry

[HYBRID WORKSHOP] New Four-Dimensional Gauge Theories October 24, 2022 - October 28, 2022

October 27, 2022 (09:30 AM PDT - 10:30 AM PDT)
Speaker(s): Mathew Bullimore (University of Durham)
Location: SLMath: Eisenbud Auditorium, Online/Virtual
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC
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Abstract

There has been recent renewed interest in four-dimensional gauge theories with disconnected gauge groups. Such theories admit a rich spectrum extended topological operators generating global symmetries that go beyond the paradigm of groups and have a natural description in terms of higher fusion categories. I will present some of these ideas and comment on potential applications to geometric Langlands for disconnected groups and enumerative problems.

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