Let R be a ring, na fixed nonnegative integer and In (Fn) the class of all left (right) R-modules
of injective (flat) dimension at most n. A left R-module M (resp., right R-module F) is called n …

Let R be any ring. A right R-module M is called n-copure projective if Ext1 (M, N)= 0 for any
right R-module N with fd (N)≤ n, and M is said to be strongly copure projective if Ext i (M, F) …

Let R be a left coherent ring. We first prove that a right R-module M is strongly copure flat if
and only if Ext i (M, C)= 0 for all flat cotorsion right R-modules C and i≥ 1. Then we define …

余纯<i>FP_n</i>平坦模 高级检索 2.{{subColumn.name}} 西南大学学报(自然科学
版) 高级搜索 {{newsColumn.name}} 1.{{subColumn.name}} 留言板 尊敬的读者,作者,审稿人 …

In this paper, in terms of the notions of {\rm strongly} copure projective modules and the
copure projective dimension $ cpD (R) $ of a ring $ R $ were defined in\cite {FZD12}, we …

Let R be a ring. A right R-module M is called GI-flat if TorR 1 (M, G)= 0 for every Gorenstein
injective left R-module G. It is shown that GI-flat modules lie strictly between flat modules and …

Let R be a commutative ring. An R-module M is said to be w-flat if Tor R 1 (M, N) is GV-
torsion for any R-module N. It is known that every flat module is w-flat, but the converse is not …

In this paper, we investigate the properties of right orthogonal modules of CC, where CC is a
class of left R-modules. As an application, we investigate the properties of right orthogonal …

设R 是整环. 众所周知, R 是Prüfer 整环当且仅当每个可除模是FP-内射模当且仅当每个h-
可除模是FP-内射模. 本文引进了一种新的GorensteinFP-内射模, 并且证明了R 是Gorenstein …

An integral domain R is said to be locally G-Dedekind if the Gorenstein global dimension of
R 𝔪 is at most one for each maximal ideal 𝔪. In this paper, we show that an integral domain …