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arXiv 1504.05946hep-thmath-phmath.MP
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从$osp(1|32) \oplus osp(1|32)$到由附加费米生成元扩展的M-理论超代数的压缩

Contractions from $osp(1|32) \oplus osp(1|32)$ to the M-theory superalgebra extended by additional fermionic generators

J. J. Fernandez, J. M. Izquierdo, M. A. del Olmo

摘要:

本文研究超代数$osp(1|32) \oplus osp(1|32)$的广义Weimar-Woods压缩,以得到一个能描述$D=11$超引力规范群的合适代数.收缩超代数被假定为M-理论超代数的费米子扩张。我们证明了这种类型的唯一的超代数通过压缩得到的是唯一的一个三种形式的$D=11$超引力不能被平凡化。因此,$D=11$超引力不能以这种方式与$osp(1|32) \oplus osp(1|32)$的收缩联系起来。

英文摘要:

We study here the generalized Weimar-Woods contractions of the superalgebra $osp(1|32) \oplus osp(1|32)$ in order to obtain a suitable algebra that could describe the gauge group of $D=11$ supergravity. The contracted superalgebras are assumed to be given in terms of fermionic extensions of the M-theory superalgebra. We show that the only superalgebra of this type obtained by contraction is the only one for which the three-form of $D=11$ supergravity cannot be trivialized. Therefore, $D=11$ supergravity cannot be connected in this way with a contraction of $osp(1|32) \oplus osp(1|32)$.

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