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Symmetric discrete quotients of supersymmetric Hpp-waves and spin structures

Hannu J. Rajaniemi

hep-tharXiv:hep-th/0601087

Abstract

We explore the importance of the choice of spin structure in determining the amount of supersymmetry preserved by a symmetric M-theory background constructed by quotienting a supersymmetric Hpp-wave with a discrete subgroup in the centraliser of its isometry group.

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