Now showing items 1-3 of 3

• A new application of the $\otimes_h$-product to $\alpha$-labelings ﻿

(2015)
Article
Open Access
The weak tensor product was introduced by Snevily as a way to construct new graphs that admit a-labelings from a pair of known a-graphs. In this article, we show that this product and the application to a-labelings can be ...
• Magic coverings and the Kronecker product ﻿

(2014-11-01)
Article
Restricted access - publisher's policy
In this paper we study a relationship existing among (super) magic coverings and the well known Kronecker product of matrices. We also introduce the concept of Z(n)-property for digraphs in order to study this relation ...
• Perfect edge-magic graphs ﻿

(2014-01-01)
Article
Restricted access - publisher's policy
The study of the possible valences for edge-magic labelings of graphs has motivated us to introduce the concept of perfect edge-magic graphs. Intuitively speaking, an edge-magic graph is perfect edge-magic if all possible ...