Department of Mathematics - Master Calendar

Symplectic and Poisson Geometry Seminar

Mar 9, 2026   2:00 pm  
150 English Building
Sponsor
Department of Mathematics
Speaker
Adi Dickstein
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5
Originating Calendar
General Events - Department of Mathematics

Speaker: Adi Dickstein

Title: Symplectic vs. topological quasi-states


Abstract:  Topological quasi-states are special functionals on the algebra of continuous functions which are linear on single-generated subalgebras. They trace their origins to the von Neumann axioms of quantum mechanics. On symplectic surfaces, every topological quasi-state is symplectic, i.e., linear on Poisson-commutative subalgebras. We discuss the failure of this phenomenon in higher dimensions based on the study of symplectic embeddings of polydiscs. The talk is based on a joint work with Frol Zapolsky.

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