ICTP Algebraic Geometry Seminar - Thursday, 24 February, at 14:00 - Georg OBERDIECK

[ICTP Math Section]

_ICTP Algebraic Geometry Seminar_

Title: Hilbert schemes of points and quasi-modular forms

Speaker: Georg OBERDIECK (University of Bonn)

Starts 24 Feb 2022 14:00
Ends 24 Feb 2022 15:00
Central European Time

Presence
VENUE: Leonardo Building - Luigi Stasi Seminar Room

Online
Register in advance for this meeting:
https://zoom.us/meeting/register/tJclcuygpjwiHdfzcn1dqtnv9hXQPHi3qFDd
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Abstract: Nekrasov correlators are intersection numbers of Chern classes 
against descendents on the Hilbert scheme of points on a surface. For K3 
surfaces these integrals are expected to have quasi-modular behaviour. I 
will first explain how to explicitly compute the simplest of these 
correlators using ideas of Ellingsrud-Goettsche-Lehn, and then what can 
be said about quasi-modularity more generally. The first part is joint 
work with Cao and Toda.

This will be a hybrid seminar. All are very welcome to join either 
online or in person (if provided with a green pass). Venue: Luigi Stasi 
Seminar Room (ICTP Leonardo Da Vinci Building), for those wishing to 
attend in person.

http://indico.ictp.it/event/9898/

-- 

Koutou Mabilo
ICTP Mathematics Group
Leonardo Da Vinci Building
Strada Costiera no. 11
34151 Trieste, Italy
Tel. no.: +39-040-2240455

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