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An Unusual Ring
Author(s) -
O'Neill John D.
Publication year - 1991
Publication title -
journal of the london mathematical society
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.441
H-Index - 62
eISSN - 1469-7750
pISSN - 0024-6107
DOI - 10.1112/jlms/s2-44.1.95
Subject(s) - ring (chemistry) , domain (mathematical analysis) , mathematics , product (mathematics) , physics , combinatorics , geometry , chemistry , mathematical analysis , organic chemistry
For every cardinal number α > 1 there exists a domain R such that, as a left R ‐module, R ⊕ R ≅ R x , the direct product of α copies of R .