Title of article :
On Gorenstein projective, injective and flat dimensions—A functorial description with applications
Author/Authors :
Lars Winther Christensen، نويسنده , , Anders Frankild، نويسنده , , Henrik Holm Jensen، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Gorenstein homological dimensions are refinements of the classical homological dimensions, and finiteness singles out modules with amenable properties reflecting those of modules over Gorenstein rings.
As opposed to their classical counterparts, these dimensions do not immediately come with practical and robust criteria for finiteness, not even over commutative noetherian local rings. In this paper we enlarge the class of rings known to admit good criteria for finiteness of Gorenstein dimensions: It now includes, for instance, the rings encountered in commutative algebraic geometry and, in the noncommutative realm, k-algebras with a dualizing complex.
Keywords :
Gorenstein projective dimension , Gorenstein injective dimension , Auslander categories , Gorenstein flat dimension , Foxby equivalence , Bass formula , Chouinard formula , Dualizing complex
Journal title :
Journal of Algebra
Journal title :
Journal of Algebra