Home /  Quasimaps to Nakajima varieties as critical loci and quantum groups

Seminar

Quasimaps to Nakajima varieties as critical loci and quantum groups October 13, 2026 (10:00 AM PDT - 11:00 AM PDT)
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Location: SLMath: Eisenbud Auditorium, Online/Virtual
Speaker(s) Spencer Tamagni (UC Berkeley)
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I will review recent progress describing certain moduli spaces of quasimaps to Nakajima quiver varieties as critical loci of explicit functions, defined via an enlarged quiver with potential. This description places quasimap critical cohomology in the general framework for quantum group actions studied by Cao-Okounkov-Zhou-Zhou. If time permits I will discuss certain implications of this, and its expected compatibility with Coulomb branch comultiplication. 

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