(0,4) dualities

We study a class of two-dimensional N=(0,\;4) quiver gauge theories that flow to superconformal field theories. We find dualities for the superconformal field theories similar to the 4d N=2 theories of class S , labelled by a Riemann surface C . The dual descriptions arise from various pair-of-pants decompositions, that involve an analog of the T N theory. Especially, we find the superconformal indices of such theories can be written in terms of a topological field theory on C . We interpret this class of SCFTs as the ones coming from compactifying 6d N=(2,\;0) theory on CP¹× C . Moreover, some new dualities of (0, 2) and (2, 2) theories are also discussed.