On Dedekind domains whose class groups are direct sums of cyclic groups (Q6132837)
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scientific article; zbMATH DE number 7729165
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On Dedekind domains whose class groups are direct sums of cyclic groups |
scientific article; zbMATH DE number 7729165 |
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On Dedekind domains whose class groups are direct sums of cyclic groups (English)
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17 August 2023
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The paper deals with ideas connected to Claborn's Realization Theorem [\textit{L. Claborn}, Pac. J. Math. 18, 219--222 (1966; Zbl 0166.30602)], that states that every abelian group is isomorphic to the class group of a Dedekind domain. The main result of the present paper shows that given a family \((G_i)_{i\in \mathbb{N}}\) of finitely generated abelian groups, there is a Dedekind domain \(D\) such that: (i) Pic\((D)=\mathop\bigoplus\limits_{i\in\mathbb{N}} G_i\); (ii) for each \(i\in\mathbb{N}\) there is a submonoid \(S_i\subset D^\bullet\) such that Pic\((D_{S_i})\simeq G_i;\) (iii) each class of Pic\((D)\) and of all Pic\((D_{S_i})\) contains infinitely many height one prime ideals. Orders in \(D\) and in all the localizations \(D_{S_i}\) are studied,
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Dedekind domains
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orders
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class group
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