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Seminar

Minuscule chamber modules and their Gelfand--Tsetlin bases September 16, 2026 (02:00 PM PDT - 03:00 PM PDT)
Parent Program:
Location: SLMath: Eisenbud Auditorium, Online/Virtual
Speaker(s) Alexis Leroux-Lapierre (McGill University)
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Minuscule chamber modules and their Gelfand--Tsetlin bases

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In recent years, the representation theory of shifted quantum groups has provided a useful framework for the study of monoidal categorification of cluster algebras in the sense of Hernandez—Leclerc. This formalism relates graded traces attached to representations to exchange relations in a cluster algebra. We present a combinatorial model for $q$-characters of certain objects in the shifted category $\mathcal{O}$, called chamber modules.

This talk is based on joint work with Artem Kalmykov, Joel Kamnitzer, Théo Pinet and Alex Weekes. 

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Minuscule chamber modules and their Gelfand--Tsetlin bases