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The classification problem for torsion-free abelian groups of finite rank
Simon Thomas
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Source: Crossref
Published: Oct 8, 2002
DOI: 10.1090/s0894-0347-02-00409-5
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We prove that for each n ≥ 1 n \geq 1 , the classification problem for torsion-free abelian groups of rank n + 1 n+1 is not Borel reducible to that for torsion-free abelian groups of rank n n .
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