The Classification of Torsion-free Abelian Groups of Finite Rank up to Isomorphism and up to Quasi-isomorphism
نویسنده
چکیده
We prove that the isomorphism and quasi-isomorphism relations on the p-local torsion-free abelian groups of fixed finite rank n are incomparable with respect to Borel reducibility.
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تاریخ انتشار 2007