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Z/NZ Conformal Field Theories

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We compute the modular properties of the possible genus-one characters of some Rational Conformal Field Theories starting from their fusion rules. We show that the possible choices ofS matrices are indexed by some automorphisms of the fusion algebra. We also classify the modular invariant partition functions of these theories. This gives the complete list of modular invariant partition functions of Rational Conformal Field Theories with respect to theA (1) N level one algebra.

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Communicated by K. Gawedzki

Unité propre de Recherche du Centre National de la Recherche Scientifique, associée à l'Ècole Normale Supérieure et à l'Université de Paris-Sud

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Degiovanni, P. Z/NZ Conformal Field Theories. Commun.Math. Phys. 127, 71–99 (1990). https://doi.org/10.1007/BF02096494

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