Abstract
AGT correspondence and its generalizations attracted a great deal of attention recently. In particular, it was suggested that U(r) instantons on \({R^4/Z_p}\) describe the conformal blocks of the coset \({{A}(r,p)_n=U(1)\times sl(p)_r\times {sl(r)_p\times sl(r)_n\over sl(r)_{n+p}}}\) , where n is a parameter. It has been shown that the representations of algebra A(r,p) n for generic values n possesses the distinguished geometrical bases. It is interesting to consider the case when the parameter n is integer. We will concentrate on this case and describe Generalized Rogers Ramanujan (GRR) identities for these cosets, which expresses the characters as certain q series. We propose that such identities exist for the coset A(r,p) n for all positive integers n and all r and p. We treat here the case of n = 1 and r = 2, finding GRR identities for all the characters.
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Belavin, A.A., Gepner, D.R. Generalized Rogers Ramanujan Identities Motivated by AGT Correspondence. Lett Math Phys 103, 1399–1407 (2013). https://doi.org/10.1007/s11005-013-0653-2
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DOI: https://doi.org/10.1007/s11005-013-0653-2