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arxiv: hep-th/9404018 · v1 · submitted 1994-04-05 · ✦ hep-th

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The Nappi-Witten example and gravitational waves

C. Duval , Z. Horv\'ath , P.A. Horv\'athy
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classification ✦ hep-th
keywords examplegravitationalwavesanomalycertainconstructedconstructionexplained
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The vanishing of the anomaly in the recent example of Nappi and Witten, constructed from the Wess-Zumino-Witten model based on a certain non-semisimple group, follows from a more general result valid for gravitational waves. The construction of the metric is explained.}

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