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6d theories on and class S theories: part II
Kantaro Ohmori, Hiroyuki Shimizu, Yuji Tachikawa +1
We study the compactification of a class of 6d theories that is Higgsable to theories. We show that the resulting 4d $\mathcal{N}{…
On skein relations in class S theories
Yuji Tachikawa, Noriaki Watanabe
Loop operators of a class S theory arise from networks on the corresponding Riemann surface, and their operator product expansions are given in terms of the skein relations, that w…
A review of the T_N theory and its cousins
Yuji Tachikawa
The T_N theory is a four-dimensional N=2 superconformal field theory that has played a central role in the analysis of supersymmetric dualities in the last few years. The aim of th…
6d theories on and class S theories: part I
Kantaro Ohmori, Hiroyuki Shimizu, Yuji Tachikawa +1
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…
Instanton operators and symmetry enhancement in 5d supersymmetric gauge theories
Yuji Tachikawa
Supersymmetric gauge theories in five dimensions often exhibit less symmetry than the ultraviolet fixed points from which they flow. The fixed points might have larger flavor symme…