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Isomorphic direct summands of Abelian groups. (English) Zbl 0122.27801


Keywords:

group theory

References:

[1] Beaumont, R. A., andR. S. Pierce: Partly transitive modules and modules with proper isomorphic submodules. Trans. Am. Math. Soc.91, 209-219 (1959). · Zbl 0090.02502 · doi:10.1090/S0002-9947-1959-0107667-7
[2] Cartan, H., andS. Eilenberg: Homological algebra. Princeton University Press 1956. · Zbl 0075.24305
[3] Crawley, P.: An infinite primary abelian group without proper isomorphic subgroups. Bull. Am. Math. Soc.68, 463-467 (1962). · Zbl 0108.25701 · doi:10.1090/S0002-9904-1962-10775-7
[4] Fuchs, L.: Abelian groups. Budapest 1958. · Zbl 0091.02704
[5] Kaplansky, I.: Infinite abelian groups. Ann Arbor 1954. · Zbl 0057.01901
[6] Specker, E.: Additive Gruppen von Folgen von ganzen Zahlen. Portugaliae Math.9, 129-140 (1950). · Zbl 0041.36314
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