Venue changed into R. 509

1. Abstract: I will talk on some topics in infinitesimal or formal deformation theory. I plan to talk about the following. Such a deformation theory is purely algebraic and well established, but there are still some subtle points.

As a starter, I will talk about the difference of the universal and semi-universal deformations which comes from the extendibility of automorphism groups, and the consequence on the locally trivial deformations in positive characteristics due to Miyamoto.
Then I will talk about the non-commutative deformations of varieties and the extension of tilting bundles implying the McKay correspondence.
I will also talk about the deformation of categories due to Lowen and Van den Bergh.

2. Registration
https://forms.gle/1WpfNhNr6QqQbkYcA

3. Join us online
May 2      May 9