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arXiv 1403.7263math.OA
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一个$P$ -Adic谱三元组

A $P$-Adic Spectral Triple

Slawomir Klimek, Matt McBride, Sumedha Rathnayake

摘要:

利用对$p$ -adic整数空间进行粗粒度逼近得到的有根树和树上的前向导数,构造了连续函数的C $^*$ -代数的谱三元组.此外,我们还证明了谱三元组满足紧致谱度量空间的性质,并证明了由谱三元组导出的$p$ -adic整数空间上的度量等价于通常的$p$ -adic度量.

英文摘要:

We construct a spectral triple for the C$^*$-algebra of continuous functions on the space of $p$-adic integers by using a rooted tree obtained from coarse-grained approximation of the space, and the forward derivative on the tree. Additionally, we verify that our spectral triple satisfies the properties of a compact spectral metric space, and we show that the metric on the space of $p$-adic integers induced by the spectral triple is equivalent to the usual $p$-adic metric.

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