G/G models and WN strings

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We derive the BRST cohomology of the G/G topological model for the case of A(1)N-1. It is shown that at level k= p q-N the latter describes the (p,q) WN minimal model coupled to WN gravity (plus some extra "topological sectors").

Original languageEnglish
Pages (from-to)309-316
Number of pages8
JournalPhysics Letters B
Issue number3-4
StatePublished - 10 Sep 1992


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