Quasi-Direct Decompositions of Torsion-Free Abelian Groups of Infinite Rank.
نویسندگان
چکیده
منابع مشابه
Jump degrees of torsion-free abelian groups
We show, for each computable ordinal α and degree a > 0(α), the existence of a torsion-free abelian group with proper αth jump degree a.
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ژورنال
عنوان ژورنال: MATHEMATICA SCANDINAVICA
سال: 1973
ISSN: 1903-1807,0025-5521
DOI: 10.7146/math.scand.a-11484