ON N-COHERENT RINGS, N-HEREDITARY RINGS AND N-REGULAR RINGS Page 1 Archive
of SID Bulletin of the Iranian Mathematical Society Vol. 37 No. 4 (2011), pp 251-267. ON …

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 …

n-co-coherent Modules ABSTRACT Page 1 Journal of Scientific Research & Reports 15(4): 1-6,
2017; Article no.JSRR.35451 ISSN: 2320-0227 n-co-coherent Modules Abdul-Qawe Kaed1∗ 1 …

Given a positive integer n, a left R-module M is called n-coherent (resp. n-semihereditary) if
every n-generated submodule of M is finitely presented (resp. projective). We investigate the …

ON n-COPRESENTED MODULES AND n-CO-COHERENT RINGS Driss Bennis, Habib Bouzraa
and Abdul-Qawe Kaed 1. Introduction Throughout this Page 1 International Electronic Journal of …

Let $ R $ be a ring, $ n $ be an non-negative integer and $ d $ be a positive integer or $\infty
$. A right $ R $-module $ M $ is called\emph {$(n, d)^* $-projective} if ${\rm Ext}^ 1_R (M …

The concept of GI ac-injective modules and GI ac-flat modules, is introduced respectively,
which is a class of modules between GI-injective modules (or GI-flat modules) and copure …

Let T be a weak torsion class of left R-modules and na positive integer. A left R-module M is
called (T, n)-injective if Ext R n (C, M)= 0 for each (T, n+ 1)-presented left R-module C; a right …

Several authors have introduced various types of coherent-like rings and proved analogous
results on these rings. It appears that all these relative coherent rings and all the used …

1. Introduction Page 1 TAIWANESE JOURNAL OF MATHEMATICS Vol. 22, No. 3, pp. 545–565,
June 2018 DOI: 10.11650/tjm/171102 Primitive Submodules, Co-semisimple and Regular …