Gorenstein flat and projective (pre)covers

Published 17 Aug 2015 in math.AC | (1508.04173v1)

Abstract: We consider a right coherent ring R. We prove that the class of Gorenstein flat complexes is covering in the category of complexes of left R-modules Ch(R). When R is also left n-perfect, we prove that the class of Gorenstein projective complexes is special precovering in Ch(R).

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