In this paper, for some hereditary torsion theory (T, F) with associated torsion radical t, the
concepts of t-finitely cogenerated (t-fcg) modules and t-finitely copresented (t-fcp) modules …

Coherent rings were first introduced by Chase as a generalization of right Noetherian rings.
His characterization has led to several generalizations of this concept. n-coherent rings have …

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 with identity and M be an R-module with unity. In this paper we introduce the
notion of C-coretractable modules. Some basic properties of this class of modules are …

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 …

Let R be a ring with identity and M be an R-module with unity. In this paper we introduce the
notion of C-coretractable modules. Some basic properties of this class of modules are …

In this paper, with respect to a tilting module T, the notions of T< sub> M< sup> n-coherence
and T< sub> M< sup> n-flatness are introduced, for every module M and every nonnegative …

In this work, cofinitely⊕− g-supplemented modules are defined and some properties of
these modules are investigated. Every module is a unitary left R-module over the ring R with …

In this paper, we introduce and study torsion-theoretic generalizations of singular and
nonsingular modules by using the concept of τ-essential submodule for a hereditary torsion …

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 …