Proves sup pd(Flat_R) = sup Gpd(GFlat_R) for arbitrary rings, giving Gorenstein-based characterizations of n-perfect and weakly n-Σ-cotorsion rings.
In: Mathematische Zeitschrift 220.4 (1995), pp
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On classical and Gorenstein homological invariants of rings
Proves sup pd(Flat_R) = sup Gpd(GFlat_R) for arbitrary rings, giving Gorenstein-based characterizations of n-perfect and weakly n-Σ-cotorsion rings.