Talks in mathematical physics

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Date / Time

Speaker

Title

Location

23 February 2026
13:30-14:30

Ioannis Chrysikos

Details

Title T.B.A.read_more

Y27 H 25

30 March 2026
13:30-14:30

A. Cabrera

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Title	Associative half-densities and quantization
Speaker, Affiliation	A. Cabrera,
Date, Time	30 March 2026, 13:30-14:30
Location	Y27 H 25
Abstract	In this talk, the idea is to first motivate the appearance of half-densities along the graph of a symplectic groupoid multiplication as a semiclassical approximation to a star product. Then, we introduce the corresponding associativity axiom and present an existence and classification result for such structures. Finally, we apply this theory to understand structurally the "1-loop factor" in Kontsevich's star product for a coordinate Poisson manifold. We also discuss in detail the case of a linear Poisson structure in which "Duflo factors" appear naturally as an underlying canonical half-density. This is based on joint work with G. Ledesma.

Associative half-densities and quantizationread_more

Y27 H 25

18 May 2026
13:30-14:30

Nils Carqueville
Universität Wien

Details

Title	Title T.B.A.
Speaker, Affiliation	Nils Carqueville, Universität Wien
Date, Time	18 May 2026, 13:30-14:30
Location	Y27 H 25
Abstract	tba

Title T.B.A.read_more

Y27 H 25

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