THE EMBEDDING OF LINE GRAPHS ASSOCIATED TO JACOBSON GRAPHS IN SPHERE AND PROJECTIVE PLANE

Let R be a commutative ring with non-zero identity and J(R) be the Jacobson radical of R. The Jacobson graph of R, denoted by JR, is a graph with vertex set R n J(R), such that two distinct vertices a and b in R n J(R) are adjacent if and only if 1

کلیدواژه ها:

Jacobson graph ، Line graph ، Planar graph ، Projective graph