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arxiv: hep-th/0503194 · v2 · submitted 2005-03-24 · ✦ hep-th · math.QA

TFT construction of RCFT correlators V: Proof of modular invariance and factorisation

Jens Fjelstad , Jurgen Fuchs , Ingo Runkel , Christoph Schweigert This is my paper
classification ✦ hep-th math.QA
keywords theoriesconformalconstructioncorrelatorsdefinedfactorisationfieldmodular
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The correlators of two-dimensional rational conformal field theories that are obtained in the TFT construction of [FRSI,FRSII,FRSIV] are shown to be invariant under the action of the relative modular group and to obey bulk and boundary factorisation constraints. We present results both for conformal field theories defined on oriented surfaces and for theories defined on unoriented surfaces. In the latter case, in particular the so-called cross cap constraint is included.

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