[引用][C] " Department of Mathematics, Hubei Institute for Nationalities, Enshi, Hubei Province 445000, People's Republic of China
J ZHAN, TAN ZsoNo - Indian J. pure appl. Math, 2004
[PDF][PDF] n-cocoherent rings, n-cosemihereditary rings and nV-rings
Z ZHU - 2014 - sid.ir
Let R be a ring, and let n, d be non-negative integers. A right R-module M is called (n, d)-
projective if Ext d+ 1 R (M, A)= 0 for every n-copresented right R-module A. R is called right n …
projective if Ext d+ 1 R (M, A)= 0 for every n-copresented right R-module A. R is called right n …
[引用][C] ON THE STRUCTURE OF COMMUTATIVE COHERENT RINGS
C FUCHANG, Z YICAI - Proceedings of the... China-Japan …, 1991 - The Symposium
[引用][C] Resolvents and dimensions of modules and rings
EE Enochs, OMG Jenda - Archiv der Mathematik, 1991 - Springer
If R is left noetherian and M is a left R-module, then we can construct a complex called an
injective resolvent of M using injective precovers. Likewise, if R is left coherent and M is a …
injective resolvent of M using injective precovers. Likewise, if R is left coherent and M is a …
On copure projective modules and copure projective dimensions
X Fu, H Zhu, N Ding - Communications in Algebra, 2012 - Taylor & Francis
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) …
right R-module N with fd (N)≤ n, and M is said to be strongly copure projective if Ext i (M, F) …
-Injective and -coherent endomorphism rings of modules
L Mao - Journal of Algebra and Its Applications, 2020 - World Scientific
Let m and n be fixed positive integers. R is called a right (m, n)-injective ring if every right R-
homomorphism from an n-generated submodule of the right R-module R m to R extends to …
homomorphism from an n-generated submodule of the right R-module R m to R extends to …
On n-coherent rings and (n, d)-injective modules
D Zhang, B Ouyang - Algebra Colloquium, 2015 - World Scientific
Let R be a ring, n, d be fixed non-negative integers, the class of (n, d)-injective left R-
modules, and the class of (n, d)-flat right R-modules. In this paper, we prove that if R is a left …
modules, and the class of (n, d)-flat right R-modules. In this paper, we prove that if R is a left …