Now showing items 1-5 of 5

• #### 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 ...
• #### Connectivity and other invariants of generalized products of graphs ﻿

(2015-02-24)
Article
Open Access
Figueroa-Centeno et al. [4] introduced the following product of digraphs let D be a digraph and let G be a family of digraphs such that V (F) = V for every F¿G. Consider any function h:E(D)¿G. Then the product D¿hG is the ...
• #### Langford sequences and a product of digraphs ﻿

(2015-12-07)
Article
Restricted access - publisher's policy
Skolem and Langford sequences and their many generalizations have applications in numerous areas. The ¿h-product is a generalization of the direct product of digraphs. In this paper we use the ¿h-product and super edge-magic ...
• #### 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 ...