A Note on the Equivalence of Vafa's and Douglas's Picture of Discrete Torsion

Abstract

For a general nonabelian group action and an arbitrary genus worldsheet we show that Vafa's old definition of discrete torsion coincides with Douglas's D-brane definition of discrete torsion associated to projective representations.

7 pages, 4 figures, LaTeX2e, minor changes

References in corpus (1)

• Symmetric products, permutation orbifolds and discrete torsion

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