English

Killing spinors and hypersurfaces

Differential Geometry 2024-04-19 v3

Abstract

We consider spin manifolds with an Einstein metric, either Riemannian or indefinite, for which there exists a Killing spinor. We describe the intrinsic geometry of nondegenerate hypersurfaces in terms of a PDE satisfied by a pair of induced spinors, akin to the generalized Killing spinor equation. Conversely, we prove an embedding result for real analytic pseudo-Riemannian manifolds carrying a pair of spinors satisfying this condition.

Keywords

Cite

@article{arxiv.2111.13202,
  title  = {Killing spinors and hypersurfaces},
  author = {Diego Conti and Romeo Segnan Dalmasso},
  journal= {arXiv preprint arXiv:2111.13202},
  year   = {2024}
}

Comments

22 pages, correction to the exponent of the imaginary unit in equation (12), sign correction in equation 14, other minor corrections

R2 v1 2026-06-24T07:52:23.347Z