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Seminar

Mathematical physics for mathematicians: The mathematics of 3d N=4 theories and 3d mirror symmetry III September 16, 2026 (11:00 AM PDT - 12:00 PM PDT)
Parent Program:
Location: SLMath: Eisenbud Auditorium, Online/Virtual
Speaker(s) Spencer Tamagni (UC Berkeley)
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Keywords and Mathematics Subject Classification (MSC)
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC
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The mathematics of 3d N=4 theories and 3d mirror symmetry III

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In the last talk, we learned that the 3d A-model is governed by the three-dimensional reduction of the Seiberg-Witten equations. Upon further reduction to a surface, these equations give a differential-geometric model for the quasimap spaces studied in enumerative geometry and representation theory. This week, we will discuss the role of quasimap critical cohomology in the 3d A-model, and the realization of quasimap vertex functions as partition functions in a partially twisted variant of the same underlying 3d field theory. If time permits we will discuss 3d mirror symmetry for vertex functions. 

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The mathematics of 3d N=4 theories and 3d mirror symmetry III