Balanced subgroups of abelian groups

Hunter, Roger H.

doi:10.1090/S0002-9947-1976-0507068-3

Balanced subgroups of abelian groups
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by Roger H. Hunter PDF

Trans. Amer. Math. Soc. 215 (1976), 81-98 Request permission

Abstract:

The balanced subgroups of Fuchs are generalised to arbitrary abelian groups. Projectives and injectives with respect to general balanced exact sequences are classified; a new class of groups is introduced in order to classify these projectives.

References

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László Fuchs, Infinite abelian groups. Vol. II, Pure and Applied Mathematics. Vol. 36-II, Academic Press, New York-London, 1973. MR 0349869
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Homology

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