Eleven-dimensional symmetric supergravity backgrounds, their geometric superalgebras, and a common reduction

Frank Klinker

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arXiv · 1408.6732

Eleven-dimensional symmetric supergravity backgrounds, their geometric superalgebras, and a common reduction

Frank Klinker

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Abstract

We present two different families of eleven-dimensional manifolds that admit non-restricted extensions of the isometry algebras to geometric superalgebras. Both families admit points for which the superalgebra extends to a super Lie algebra; on the one hand, a family of $N=1$, $\nu={}^3\!/\!_4$ supergravity backgrounds and, on the other hand, a family of $N=1$, $\nu=1$ supergravity background. Furthermore, both families admit a point that can be identified with an $N=4$, $\nu={}^1\!/\!_2$ six-dimensional supergravity background.

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Frank Klinker. 2014-08-28. Eleven-dimensional symmetric supergravity backgrounds, their geometric superalgebras, and a common reduction. https://arxiv.org/abs/1408.6732

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