Idempotent ideals and non-finitely generated projective modules over integral group rings of polycyclic-by-finite groups
classification
🧮 math.RA
keywords
groupgeneratedintegralnon-finitelypolycyclic-by-finiteprojectiveeveryfree
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We prove that every non-finitely generated projective module over the integral group ring of a polycyclic-by-finite group G is free if and only if G is polycyclic.
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