Real spectral triples over noncommutative Bieberbach manifolds |
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Affiliation: | 1. Copernicus Center for Interdisciplinary Studies, Sławkowska 17, 31-016 Kraków, Poland;2. Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland |
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Abstract: | We classify and construct all real spectral triples over noncommutative Bieberbach manifolds, which are restrictions of irreducible, real, equivariant spectral triples over the noncommutative three-torus. We show that, in the classical case, the constructed geometries correspond exactly to spin structures over Bieberbach manifolds and the Dirac operators constructed for a flat metric. |
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Keywords: | Noncommutative geometry Spectral triple Dirac operator |
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