1-form symmetries of 4d N=2 class S theories

1-form symmetries of 4d N=2 class S theories

We determine the 1-form symmetry group for any 4d N = 2 class S theory constructed by compactifying a 6d N=(2,0) SCFT on a Riemann surface with arbitrary regular untwisted and twisted punctures. The 6d theory has a group of mutually non-local dimension-2 surface operators, modulo screening. Comp...

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Bibliographic Details
Main Author:	Lakshya Bhardwaj, Max Hübner, Sakura Schafer-Nameki
Format:	Article
Language:	English
Published:	SciPost 2021-11-01
Series:	SciPost Physics
Online Access:	https://scipost.org/SciPostPhys.11.5.096

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