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arXiv 0809.4678math-phhep-thmath.MP
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非整数维几何的示例

Examples of non integer dimensional geometries

R. Trinchero

摘要:

考虑了两个非整数维谱三元组的例子。这些三元组涉及交换C*-代数。第一个例子有复维数谱和平凡微分代数。另一个是S1上正则谱三元组的参数依赖变形。它的维数谱包含实的非整数值。它有一个非平凡的微分代数,并与一维的情况相比,有一个非零的变形参数没有垃圾形式。这个空间上的距离,很大程度上取决于这个参数。

英文摘要:

Two examples of spectral triples with non-integer dimension spectrum are considered. These triples involve commutative C*-algebras. The first example has complex dimension spectrum and trivial differential algebra. The other is a parameter dependent deformation of the canonical spectral triple over S1. Its dimension spectrum includes real non-integer values. It has a non-trivial differential algebra and in contrast with the one dimensional case there are no junk forms for a non-vanishing deformation parameter. The distance on this space depends non-trivially on this parameter.

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