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The Hori-Tong and Hori dualities are infrared dualities between two-dimensional gauge theories with N = (2, 2) supersymmetry, which are reminiscent of four-dimensional Seiberg dualities. We provide additional evidence for those dualities with U(N c ), USp(2N c ), SO(N ) and O(N ) gauge groups, by matching correlation functions of Coulomb branch operators on a Riemann surface Σ g , in the presence of the topological A-twist. The O(N ) theories studied, denoted by O+(N ) and O_(N ), can be understood as Z₂ orbifolds of an SO(N ) theory. The correlators of these theories on Σ g with g > 0 are obtained by computing correlators with Z₂ -twisted boundary conditions and summing them up with weights determined by the orbifold projection.
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Closset et al. (2017) studied this question.
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