Refined Vafa-Witten invariants for projective surfaces
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Seminar
Richard Thomas (Imperial London) - Seminar Algebraic Geometry (SAG)
| What |
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|---|---|
| When |
Jun 14, 2018 from 10:30 am to 11:30 am |
| Where | Bonn, Hörsaal MPI, Vivatsgasse 7 |
| Contact Name | Sachinidis |
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I'll describe how to define Vafa-Witten invariants -- and refined Vafa-Witten invariants -- of projective surfaces. Then I'll explain how to calculate some parts of the theory via degeneracy loci and "Carlsson-Okounkov operators". The talk describes different projects joint with Yuuji Tanaka, Davesh Maulik and Amin Gholampour.
