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S-duality and the Calabi-Yau interpretation of the N=4 to N=2 flow Gómez, César Hernández Redondo, Rafael López, Esperanza © 1996 Elsevier Science B.V. This work is partially supported under grant by European Community grant ERBCHRXCT920069, by PB92-1092. The work of E. L. is supported by M. E. C. fellowship. The work of R. H. is supported by U.A.M. fellowship. The action of the S-duality Sl(2,Z) group on the moduli of the Calabi-Yau manifold WIP^(12)_(11226) appearing in the rank two dual pair (K3 × T 2/WIP^(12)_(11226)) is defined by interpreting the N = 4 to N = 2 flow, for SU(2) supersymmetric YangMills, in terms of the Calabi-Yau moduli. The different singularity loci are mapped in a one to one way, and the (N = 2 limit/point particle limit) is obtained in both cases by the same type of blow up. Moreover, it is shown that the S-duality group permutes the different singularity loci of the moduli of WIP^(12)_(11226). We study the transformation under S-duality of the Calabi-Yau Yukawa couplings. 2023-06-20T20:24:34Z 2023-06-20T20:24:34Z 1996-10-03 journal article 0370-2693 10.1016/0370-2693(96)00912-4 https://hdl.handle.net/20.500.14352/60227 http://dx.doi.org/10.1016/0370-2693(96)00912-4 http://www.sciencedirect.com https://arxiv.org/abs/hep-th/9512017v3 eng ERBCHRXCT920069 PB92-1092 open access Elsevier Science BV