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arxiv: math/0211255 · v3 · submitted 2002-11-16 · 🧮 math.QA

Module categories of simple current extensions of vertex operator algebras

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keywords moduleoperatorvertexalgebraalgebrascurrentextensionssimple
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In this article, we study module categries of simple current extensions of vertex operator algebras. Under certain assumptions, we show that every module for a rational vertex operator algebra be lifted to a twisted module for an extended algebra with an abelian symmetry.

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