The energy-momentum tensor as a second fundamental form

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We show that it is natural to consider the energy-momentum tensor associated with a spinor field as the second fundamental form of an isommetric immersion. In particular we give a generalization of the warped product construction over a Riemannian manifold leading to this interpretation. Special sections of the spinor bundle, generalizing the notion of Killing spinor, are studied. First applications of such a construction are then given.
LaTeX, 13 pages

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Differential Geometry, 53C27, 53C45, 53A10

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http://salesiana.dossiersoluciones.com/handle/123456789/66552

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0302205
 http://arxiv.org/abs/math/0302205

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arXiv