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.
Cotorsion pairs, A dimension of complexes, B dimension of complexes
WEI, CHONGQING; WANG, LIMIN; and QIAO, HUSHENG
"Homological dimensions of complexes related to cotorsion pairs,"
Turkish Journal of Mathematics: Vol. 38:
3, Article 4.
Available at: https://journals.tubitak.gov.tr/math/vol38/iss3/4