Title of article :
Homological dimensions of complexes related to cotorsion pairs
Author/Authors :
WEI, CHONGQING Northwest Normal University - Department of Mathematics, China , WANG, LIMIN Northwest Normal University - Department of Mathematics, China , QIAO, HUSHENG Northwest Normal University - Department of Mathematics, China
From page :
401
To page :
418
Abstract :
Let (A, B) be a cotorsion pair in R-Mod. We define and study notions of A dimension and B dimension of unbounded complexes, which is given by means of dg -projective resolution and dg-injective resolution, respectively. As an application, we extend the Gorenstein flat dimension of complexes, which was defined by Iacob. Gorenstein cotorsion, FP-projective, FP-injective, Ding projective, and Ding injective dimension are also extended from modules to complexes. Moreover, we characterize Noetherian rings, von Neumann regular rings, and QF rings by the FP-projective, FP-injective, and Ding projective (injective) dimension of complexes, respectively.
Keywords :
Cotorsion pairs , A dimension of complexes , B dimension of complexes
Journal title :
Turkish Journal of Mathematics
Journal title :
Turkish Journal of Mathematics
Record number :
2531477
Link To Document :
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