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arXiv 1806.01079math-phhep-thmath.DGmath.MP
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广义对称超代数

Generalized symmetry superalgebras

Özgür Açık, Ümit Ertem

摘要:

我们推广了流形上的等距和几何Killing旋量的对称超代数,使其包含了所有维中Killing旋量生成的流形的所有隐藏对称。我们证明了几何Killing旋量的双线性产生特殊的Killing-Yano形式和特殊的共形Killing-Yano形式。在定义了Killing旋量生成的隐对称的李代数结构之后,我们构造了作为旋量域上李导数的推广的对称算子。所有这些构造共同构成了广义对称超代数的结构。本文给出了弱$G_2$和近似Kähler流形上的构造.

英文摘要:

We generalize the symmetry superalgebras of isometries and geometric Killing spinors on a manifold to include all the hidden symmetries of the manifold generated by Killing spinors in all dimensions. We show that bilinears of geometric Killing spinors produce special Killing-Yano and special conformal Killing-Yano forms. After defining the Lie algebra structure of hidden symmetries generated by Killing spinors, we construct the symmetry operators as the generalizations of the Lie derivative on spinor fields. All these constructions together constitute the structure of generalized symmetry superalgebras. We exemplify the construction on weak $G_2$ and nearly Kähler manifolds.

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