Seminario del 2018

Ottobre
12
2018
Paolo Aschieri
Noncommutative principal bundles on projective bases
SEMINARIO INTERDISCIPLINARE
The notion of noncommutative principal bundle is not as well understood as that of noncommutative vector bundle. Main examples, like the noncommutative instanton bundle, are algebraically understood as Hopf-Galois extensions. This definition is particularly useful when the noncommutative base space is affine (the function algebra being given in terms of generators and relations). We relax it by presenting a sheaf theoretic approach that allows to consider noncommutative principal bundles over non affine base spaces; examples include projective spaces.
organizzato da: Emanuele Latini
nell'ambito del Progetto RITA LEVI MONTALCINI 2016 del prof. Emanuele Latini

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