Ring analogues of Baer's norm and P. Hall's margins (Q1173872)
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scientific article; zbMATH DE number 7639
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Ring analogues of Baer's norm and P. Hall's margins |
scientific article; zbMATH DE number 7639 |
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Ring analogues of Baer's norm and P. Hall's margins (English)
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25 June 1992
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The Kern of a group was introduced by \textit{R. Baer} [in Compos Math. 1, 254-283 (1934; Zbl 0009.15504)] as the intersection of the normalisers of the cyclic subgroups of the group. Marginal subgroups were introduced by \textit{P. Hall} [in J. Reine Angew. Math. 182, 156-157 (1940; Zbl 0023.29902)]. The authors extend these notions to rings and investigate some of the basic properties.
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Kern
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marginal subgroups
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rings
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