English

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

Combinatorics 2017-01-30 v2

Abstract

Let RR be a commutative ring with identity, and let Z(R)Z(R) be the set of zero-divisors of RR. The annihilator graph of RR is defined as the undirected graph AG(R)AG(R) with the vertex set Z(R)=Z(R){0}Z(R)^*=Z(R)\setminus\{0\}, and two distinct vertices xx and yy are adjacent if and only if annR(xy)annR(x)annR(y)ann_R(xy)\neq ann_R(x)\cup ann_R(y). In this paper, all rings whose annihilator graphs can be embed on the plane or torus are classified.

Keywords

Cite

@article{arxiv.1701.06398,
  title  = {When the Annihilator Graph of a Commutative Ring Is Planar or Toroidal?},
  author = {Mohammad Javad Nikmehr and Reza Nikandish and Moharam Bakhtyiari},
  journal= {arXiv preprint arXiv:1701.06398},
  year   = {2017}
}

Comments

11 pages, 1 figure

R2 v1 2026-06-22T17:57:10.113Z