The additive groups of subdirectly irreducible rings

Shalom Feigelstock

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

An abelian group G is said to be subdirectly irreducible if there exists a subdirectly irreducible ring R with additive group G. If G is subdirectly irreducible, and if every ring R with additive group G, and R2 ≠ 0, is subdirectly irreducible, then G is said to be strongly subdirectly irreducible. The torsion, and torsion free, subdirectly irreducible and strongly subdirectly irreducible groups are classified completely. Results are also obtained concerning mixed subdirectly irreducible and strongly subdirectly irreducible groups.

Original languageEnglish
Pages (from-to)165-170
Number of pages6
JournalBulletin of the Australian Mathematical Society
Volume20
Issue number2
DOIs
StatePublished - Apr 1979

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