This paper contains a classification of all three-dimensional manifolds with constant eigenvalues of the Ricci tensor that carry a non-trivial solution of the Einstein-Dirac equation.
The Einstein–Dirac equation on Sasakian 3-manifolds
✍ Scribed by Florin Alexandru Belgun
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 61 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0393-0440
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✦ Synopsis
We prove that a Sasakian 3-manifold admitting a non-trivial solution to the Einstein-Dirac equation has necessarily constant scalar curvature. In the case when this scalar curvature is non-zero, their classification follows then from a result by Th. Friedrich and E.C. Kim. We also prove that a scalar-flat Sasakian 3-manifold admits no local Einstein spinors.
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