A dichotomy for Polish modules
Let \(R\) be a ring equipped with a proper norm. We show that under suitable conditions on \(R\), there is a natural basis under continuous linear injection for the set of Polish \(R\)-modules which are not countably generated. When \(R\) is a division ring, this basis can be taken to be a singleton...
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Veröffentlicht in: | arXiv.org 2021-12 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Let \(R\) be a ring equipped with a proper norm. We show that under suitable conditions on \(R\), there is a natural basis under continuous linear injection for the set of Polish \(R\)-modules which are not countably generated. When \(R\) is a division ring, this basis can be taken to be a singleton. |
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ISSN: | 2331-8422 |