activity
20132022
most citedThe intersection graph of ideals of is\\ weakly perfect

3 citations · 5 across the 12 of their papers we have counts for

collaborators

12 papers

math.AC2022

On pseudo-absorbing primary multiplication modules over pullback rings

M. J. Nikmehr, R. Nikandish, A. Yassine

A famous result due to L. S. Levy provides a classification of all finitely generated indecomposable modules over Dedekind-like rings. This motivates us to outline an approach to t…

math.AC2022

Commutative rings whose proper ideals are direct sum of cyclically presented modules

R. Nikandish, M. J. Nikmehr, A. Yassine

A famous result due to I. M. Isaacs states that if a commutative ring has the property that every prime ideal is principal, then every ideal of is principal. This motivates…

math.RA2022★ 1 cited

Cyclic-Uniform Uniserial Modules and Rings

R. Nikandish, M. J. Nikmehr, A. Yassine

An -module is called virtually uniserial if for every finitely generated submodule , Rad is virtually simple. In this paper, we generalize vir…

math.CO2022

Coloring in essential annihilating-ideal graphs of commutative rings

R. Nikandish, M. Mehrara, M. J. Nikmehr

The essential annihilating-ideal graph of a commutative unital ring is a simple graph whose vertices are non-zero ideals of with non-zero annihilator and…

math.AC2021★ 1 cited

On weakly -absorbing prime ideals of commutative rings

M. J. Nikmehr, R. Nikandish, A. Yassine

Let be a commutative ring with identity. In this paper, we introduce the concept of weakly -absorbing prime ideals which is a generalization of weakly prime ideals. A proper…

math.AC2021

Integral closures, Primary Hyperideals and Hypervaluation Hyperideals of Kranser Hyperrings

M. J. Nikmehr, R. Nikandish, A. Yassine

In this paper, the notions of integral closure of hyperrings and hyperideals in a Krasner hyperring are defined and some basics properties of them are studied. We d…

math.CO2018

Coloring of cozero-divisor graphs of commutative von Neumann regular rings

R. Nikandish, M. J. Nikmehr, M. Bakhtyiari

Let be a commutative ring with non-zero identity. The cozero-divisor graph of , denoted by , is a graph with vertices in , which is the set of all non…

math.CO2017

More on the Annihilator-Ideal Graph of a Commutative Ring

M. J. Nikmehr, S. M. Hosseini

Let be a commutative ring with identity and be the set of ideals of with non-zero annihilator. The annihilator-ideal graph of , denoted by , is…

math.CO2017

When the Annihilator Graph of a Commutative Ring Is Planar or Toroidal?

Mohammad Javad Nikmehr, Reza Nikandish, Moharam Bakhtyiari

Let be a commutative ring with identity, and let be the set of zero-divisors of . The annihilator graph of is defined as the undirected graph with the ver…

math.AC2013★ 3 cited

The intersection graph of ideals of is\\ weakly perfect

R. Nikandish, M. J. Nikmehr

A graph is called weakly perfect if its vertex chromatic number equals its clique number. Let be a ring and be the set of all left proper non-trivial ideals of . Th…

math.RA2013

On weak -skew McCoy Rings

M. J. Nikmehr, A. Nejati, M. Deldar

Let be an endomorphism of a ring . We introduce the notion of weak -skew McCoy rings which are a generalization of the -skew McCoy rings and the weak McCo rings. Some…

math.AC2013

The M-Principal Graph of a Commutative Ring

M. J. Nikmehr, F. Heydari

This paper has been withdrawn by the author because there are some typos in proofs.