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Strong Frobenius Algebra Models for Disk-Presheaves

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Speaker: 
Florian Naef
Affiliation: 
Trinity College Dublin
Date: 
Wed, 20/05/2026 - 11:00 - 12:00
Location: 
MPIM Lecture Hall

Given a closed manifold, its cohomology carries the structure of a Frobenius algebra. I will explain how such a structure can be lifted to the cochain-level using its configuration spaces of points. Moreover, the construction is invertible, that is, it gives an equivalence between strong Frobenius algebras and Disk-presheaves in commutative algebras. In other words, one can (coherently) recover the cochain algebra of the configuration space of $n$ points on $M$ from the strong Frobenius algebra structure on cochains on $M$.

This talk is based on ongoing joint work with Thomas Willwacher.



 

 

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