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arXiv · hep-th/9206063

G/G Models and W_N strings

O. Aharony·J. Sonnenschein·S. Yankielowicz
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Abstract

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) W_N minimal model coupled to $W_N$ gravity (plus some extra ``topological sectors").

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O. Aharony, J. Sonnenschein, S. Yankielowicz. 1992-06-16. G/G Models and W_N strings. https://doi.org/10.1016/0370-2693(92)91224-w

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