Anti-isomorphisms of the Endomorphism Rings of Torsion-Free Modules.
Leonard Gewirtzman (1967)
Mathematische Zeitschrift
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Leonard Gewirtzman (1967)
Mathematische Zeitschrift
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L. GEWIRTZMAN (1965)
Mathematische Annalen
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Manfred Dugas, Rüdiger Göbel (1982)
Mathematische Zeitschrift
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Radoslav Dimitrić (1987)
Rendiconti del Seminario Matematico della Università di Padova
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Wolfson, Kenneth G. (1990)
Portugaliae mathematica
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Rüdiger Göbel, Lutz Strüngmann (2001)
Fundamenta Mathematicae
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Let R be a unital commutative ring and A a unital R-algebra. We introduce the category of E(A,R)-modules which is a natural extension of the category of E-modules. The properties of E(A,R)-modules are studied; in particular we consider the subclass of E(R)-algebras. This subclass is of special interest since it coincides with the class of E-rings in the case R = ℤ. Assuming diamond ⋄, almost-free E(R)-algebras of cardinality κ are constructed for any regular non-weakly compact cardinal...
P.M. Cohn (1959)
Mathematische Zeitschrift
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Kiiti Morita, Hiroyuki Tachikawa (1956)
Mathematische Zeitschrift
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Radoslav M. Dimitrić (1987)
Czechoslovak Mathematical Journal
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W. Zimmermann, B. Zimmermann-Huisgen (1978)
Mathematische Zeitschrift
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Rüdiger Göbel, Saharon Shelah (1984/85)
Mathematische Zeitschrift
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