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5/5 Vafa-Witten Invariants of Projective Surfaces

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5/5 Vafa-Witten Invariants of Projective Surfaces
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39
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CC Attribution 3.0 Unported:
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This course has 4 sections split over 5 lectures. The first section will be the longest, and hopefully useful for the other courses. 1. Sheaves, moduli and virtual cycles 2. Vafa-Witten invariants: stable and semistable cases 3. Techniques for calculation --- virtual degeneracy loci, cosection localisation and a vanishing theorem 4. Refined Vafa-Witten invariants