In this paper, the concepts of (m, n)-coherent modules and (m, n)-semihereditary modules
are given by analogy to the concepts and properties of coherent modules,(m, n)-coherent …

It is known that a ring R is left Noetherian if and only if every left R-module has an injective
(pre) cover. We show that (1) if R is a right n-coherent ring, then every right R-module has an …

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, let I be an ideal of R, and let n be a fixed positive integer. We define and
study In-injective modules and In-flat modules. Moreover, we define and study left In …

A ring R is left co-semihereditary (strongly left co-semihereditary) if every finitely
cogenerated factor of a finitely cogenerated (arbitrary) injective left R-module is injective. A …

Let R be a ring and be a class of right R-modules which is closed under submodules,
quotients and isomorphisms. A right R-module M is called-injective if for every T. A ring R is …

Let R be a ring, na fixed nonnegative integer and F n the class of all left R-modules of flat
dimension at most n. A left R-module M is called n-copure projective if Ext R 1 (M, F)= 0 for …

P. VAMOS [11] has defned and studied'finitely embedded modules' as the dual of'finitely
generated modules'. JANS [4] called them as co finitely generated modules and defined a …

In this paper, copure-injective modules is examined from an alternative perspective. For two
modules A and B, A is called B-subcopure-injective if for every copure monomorphism f: B→ …

A ring A is a completely integrally closed right A-module if and only if the maximal right ring
of quotients Q max (A) of A is an injective right A-module and A is a right completely …