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Tagged with affine-lie-algebra spacetime-dimensions
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Strings on group manifolds and critical dimension
In their work, Witten and Gepner in "Strings on group manifolds" have shown that the central charge of the theory is
\begin{equation}
c=\frac{kD}{c^{\vee}+k}+d=26,
\end{equation}
where $d$ ...
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