[Dottorcomp] Seminari di Geometria e Algebra - 5 maggio 2026

[Davide Bricalli]

Il giorno martedì 5 maggio
in Aula Beltrami
alle ore 16,15

Jonas Schnitzer  (Università di Pavia)

terrà un seminario dal titolo:

Titolo: On the Quantization-Dequantization Correspondence for (co)Poisson
Hopf Algebras

Abstract: To find a universal way of  quantizing Lie bialgebras has been a
problem posed by Drinfel'd and its solution has been provided by Etingof
and Kazhdan. It is hard to overstimate the importance of their results for
the theory of quantum groups and also seemingly unrelated research areas.
After their result, Ševera proposed a rather simple way to obtain the same
result. The aim of this talk is to explain that one can use a mixture of
both results to get a full picture of the quantization of (co)Poisson Hopf
algebras, and moreover, to construct an inverse functor, called
dequantization, along the same lines. If time permits, I will explain how
our result can be used to construct a Gerstenhaber up to homotopy structure
on the Hochschild cochains of an associative algebra.
This is based on a joint work with Andrea Rivezzi (
https://arxiv.org/abs/2602.03810).


Tutti gli interessati sono invitati a partecipare.

Chi vuole partecipare al pranzo scriva a me, a Filippo Favale <
filippo.favale a unipv.it> e a Lidia Stoppino < lidia.stoppino a unipv.it>.


Davide Bricalli