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arXiv 1408.2649hep-thmath-phmath.DGmath.MP
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Poisson-广义几何与$R$ -通量

Poisson-generalized geometry and $R$-flux

T. Asakawa, H. Muraki, S. Sasa, S. Watamura

摘要:

本文研究了Poisson流形上的一类新的Courant代数胚,它是广义切丛的一个变种,在这个意义上切丛和余切丛的角色互换了。它的对称性是$β$ -同态和$β$ -变换的半直积。它是基于余切丛的广义几何的另一个版本的起点,例如狄拉克结构和广义黎曼结构。特别地,$R$ -通量被公式化为柯朗代数体通过局部$β$ -变换的扭曲,以相同的方式作为$H$ -通量是广义切丛的扭曲。它是一个由Poisson $3$ -上同调分类的$3$ -向量,它出现在一个扭曲的括号中,并以精确的顺序出现。

英文摘要:

We study a new kind of Courant algebroid on Poisson manifolds, which is a variant of the generalized tangent bundle in the sense that the roles of tangent and the cotangent bundle are exchanged. Its symmetry is a semidirect product of $β$-diffeomorphisms and $β$-transformations. It is a starting point of an alternative version of the generalized geometry based on the cotangent bundle, such as Dirac structures and generalized Riemannian structures. In particular, $R$-fluxes are formulated as a twisting of this Courant algebroid by a local $β$-transformations, in the same way as $H$-fluxes are the twist of the generalized tangent bundle. It is a $3$-vector classified by Poisson $3$-cohomology and it appears in a twisted bracket and in an exact sequence.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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