On the Cantor and Hilbert cube frames and the Alexandroff-Hausdorff theorem (Q2065608)
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scientific article; zbMATH DE number 7455897
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the Cantor and Hilbert cube frames and the Alexandroff-Hausdorff theorem |
scientific article; zbMATH DE number 7455897 |
Statements
On the Cantor and Hilbert cube frames and the Alexandroff-Hausdorff theorem (English)
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12 January 2022
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This paper is a description of the Cantor space in pointfree topology. It presents the frame \(\mathcal{L}(\mathbb{Z}_p)\) of \(p\)-adic integers by generators and relations. The spatialization of \(\mathcal{L}(\mathbb{Z}_p)\) is homeomorphic to the ultrametric space of \(p\)-adic integers \(\mathbb{Z}_p=\{x\in\mathbb{Q}_p\colon |x|_p\le 1\}\), thus homeomorphic to the Cantor space. It is shown that \(\mathcal{L}(\mathbb{Z}_p)\) is zero-dimensional, compact, metrizable, ultraparacompact, and ultranormal and that any compact metrizable locale is a localic image of \(\mathcal{L}(\mathbb{Z}_2)\).
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frames
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locales
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\(p\)-adic numbers
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\(p\)-adic integers
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Cantor set
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point-free topology
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