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 …

We introduce the concepts of (n, d)-injective and (n, d)-flat as generalizations of injective, flat
modules and homological dimensions, and use them to characterize right n-coherent rings …

This paper unifies several generalizations of coherent rings in one notion. Namely, we
introduce nX-coherent rings, where X is a class of modules and n is a positive integer, as …

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. For two fixed positive integers m and n, a right R-module M is called (m, n)-
injective in case every right R-homomorphism from an n-generated submodule of Rm to M …

In this article, we introduce two new classes of modules over a ϕ-ring that generalize the
classes of coherent modules and Noetherian modules. We next study the possible transfer …

We study the notions of n-hereditary rings and its connection to the classes of finitely n-
presented modules, FP n-injective modules, FP n-flat modules and n-coherent rings. We …

Recently, Costa [4] introduced the concept of n-coherent rings. In this note we shall give
some further properties of n-coherent rings. Let R be a ring and na nonnegative integer …

n-Coherent Rings Page 1 n-COHERENT RINGS Sang Bum Lee Department of Mathematical
Education, Sangmyung University, Seoul 110-743, Korea ABSTRACT The notion of left …

Let R be a ring and Nil∗(R) be the prime radical of R. In this paper, we say that a ring R is
left Nil∗-coherent if Nil∗(R) is coherent as a left R-module. The concept is introduced as the …