Regular multiplication rings (Q1123930)
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scientific article; zbMATH DE number 4110818
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Regular multiplication rings |
scientific article; zbMATH DE number 4110818 |
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Regular multiplication rings (English)
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1989
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Let R be a commutative ring with 1. An R-module M is called a multiplication module if every submodule of M has the form IM, I being an ideal of R. The ring R itself is defined to be a (regular) multiplication ring if every ideal of R (containing a regular element) is a multiplication R-module. The author presents some results which are generalizations of and not far from known results about Dedekind domains. For example, R is shown to be a regular multiplication ring if and only if \((1)\quad for\) every regular ideal I of R the ring R/I is a finite direct sum of Artinian local rings whose maximal ideal is generated by one element; or \((2)\quad every\) finitely generated torsion R-module is of finite length and a direct sum of cyclic submodules.
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multiplication module
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Dedekind domains
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regular multiplication ring
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