M. Bakhtyiari

collaborators

2 papers

math.CO2018

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

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

Let $R$ be a commutative ring with non-zero identity. The cozero-divisor graph of $R$ , denoted by $Γ^{'} (R)$ , is a graph with vertices in $W^{*} (R)$ , which is the set of all non…

math.CO2017

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

Mohammad Javad Nikmehr, Reza Nikandish, Moharam Bakhtyiari

Let $R$ be a commutative ring with identity, and let $Z (R)$ be the set of zero-divisors of $R$ . The annihilator graph of $R$ is defined as the undirected graph $A G (R)$ with the ver…