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Supersymmetry and spin structures

José Figueroa-O'Farrill, Sunil Gadhia

hep-tharXiv:hep-th/0506229

Abstract

We construct examples of isometric M-theory backgrounds which preserve a different amount of supersymmetry depending on the choice of spin structure. These examples are of the form AdS4 x L, where L is a seven-dimensional lens space whose fundamental group is cyclic of order 4k.

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