Counting Exceptional Instantons

Christoph A. Keller; Jaewon Song

Counting Exceptional Instantons

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arxiv 1205.4722 v2 pith:4F7VKZ3U submitted 2012-05-21 hep-th math.AG

Christoph A. Keller , Jaewon Song This is my paper · ORCID

classification hep-thmath.AG

keywords exceptionalinstantonblow-upcomputecontributioncountingderivedfunction

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We show how to obtain the instanton partition function of N=2 SYM with exceptional gauge group EFG using blow-up recursion relations derived by Nakajima and Yoshioka. We compute the two instanton contribution and match it with the recent proposal for the superconformal index of rank 2 SCFTs with E6, E7 global symmetry.

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Instantons from Blow-up
hep-th 2019-08 conditional novelty 7.0 of 10

The instanton partition function of many 4d N=2 and 5d N=1 gauge theories is fully determined by the perturbative part via generalized Nakajima-Yoshioka blowup equations.

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