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arXiv 1012.3055math-phhep-thmath.MPmath.QA
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非交换圆丛与新的Dirac算子

Noncommutative circle bundles and new Dirac operators

Ludwik Dabrowski, Andrzej Sitarz

摘要:

本文研究非交换主U(1)丛上的谱三元组。基于经典情形和抽象代数方法,我们给出了全空间和丛基空间上的联络的算子定义及其与Dirac算子的相容性.我们详细地分析了非交换三环面作为非交换二环面上的U(1)丛的例子,并找到了与一个可容许的Dirac算子相容的所有联系。相反,我们发现一个家庭的新的狄拉克运营商的非交换环面,它产生的基础空间狄拉克运营商和一个合适的连接。

英文摘要:

We study spectral triples over noncommutative principal U(1) bundles. Basing on the classical situation and the abstract algebraic approach, we propose an operatorial definition for a connection and compatibility between the connection and the Dirac operator on the total space and on the base space of the bundle. We analyze in details the example of the noncommutative three-torus viewed as a U(1) bundle over the noncommutative two-torus and find all connections compatible with an admissible Dirac operator. Conversely, we find a family of new Dirac operators on the noncommutative tori, which arise from the base-space Dirac operator and a suitable connection.

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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