6d theories on and class S theories: part I
arXiv:1503.06217
Abstract
We show that the superconformal theory on a single M5 brane on the ALE space of type , when compactified on , becomes a class S theory of type on a sphere with two full punctures and a simple puncture. We study this relation from various viewpoints. Along the way, we develop a new method to study the 4d SCFT arising from the compactification of a class of 6d theories we call very Higgsable.
29 pages