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On mysteriously missing T-duals, H-flux and the T-duality group

Varghese Mathai·Jonathan Rosenberg
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Abstract

A general formula for the topology and H-flux of the T-duals of type II string theories with H-flux on toroidal compactifications is presented here. It is known that toroidal compactifications with H-flux do not necessarily have T-duals which are themselves toroidal compactifications. A big puzzle has been to explain these mysterious ``missing T-duals'', and our paper presents a solution to this problem using noncommutative topology. We also analyze the T-duality group and its action, and illustrate these concepts with examples.

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Varghese Mathai, Jonathan Rosenberg. 2005-08-05. On mysteriously missing T-duals, H-flux and the T-duality group. https://doi.org/10.1142/9789812772527_0030

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