New York Journal of Mathematics
Volume 21 (2015) 1269-1282

  

Ahmad Yousefian Darani and Mahdi Rahmatinia

On Φ-Mori modules

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Published: November 27, 2015
Keywords: Mori module; divisorial submodule; Φ-Mori module, Φ-divisorial submodule.
Subject: 16D10, 16D80

Abstract
In this paper we introduce the concept of Mori module. An R-module M is said to be a Mori module if it satisfies the ascending chain conditon on divisorial submodules. Then we introduce a new class of modules which is closely related to the class of Mori modules. Let R be a commutative ring with identity and set
H={M | M is an R-module and Nil(M) is a divided prime submodule of M}.
For an R-module M∈H, set
T=(R\setminus Z(M))∩ (R\setminus Z(R)),
\mathfrak{T}(M)=T-1(M),
P:=[Nil(M):RM].
In this case the mapping Φ:\mathfrak{T}(M)⟶ MP given by Φ(x/s)=x/s is an R-module homomorphism. The restriction of Φ to M is also an R-module homomorphism from M in to MP given by Φ(m/1)=m/1 for every m∈ M. A nonnil submodule N of M is Φ-divisorial if Φ(N) is divisorial submodule of Φ(M). An R-module M∈ H is called Φ-Mori module if it satisfies the ascending chain condition on Φ-divisorial submodules. This paper is devoted to study the properties of Φ-Mori modules.

Author information

Ahmad Yousefian Darani:
Department of Mathematics and Applications, University of Mohaghegh Ardabili, P. O. Box 179, Ardabil, Iran
youseffian@gmail.com

Mahdi Rahmatinia:
Department of Mathematics and Applications, University of Mohaghegh Ardabili, P. O. Box 179, Ardabil, Iran
mahdi.rahmatinia@gmail.com