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Achmed-Zade, Ismail; Hamilton, Mark J. D.; Lüst, Dieter; Massai, Stefano (2018): A note on T-folds and T3 fibrations. In: Journal of High Energy Physics, No. 12, 20
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Abstract

We study stringy modifications of T-3-fibered manifolds, where the fiber undergoes a monodromy in the T-duality group. We determine the fibration data defining such T-folds from a geometric model, by using a map between the duality group and the group of large diffeomorphisms of a four-torus. We describe the monodromies induced around duality defects where such fibrations degenerate and we argue that local solutions receive corrections from the winding sector, dual to the symmetry-breaking modes that correct semi-flat metrics.