Discriminating codes in (bipartite) planar graphs

Autor: Gérard D. Cohen, Antoine Lobstein, Olivier Hudry, Irène Charon
Rok vydání: 2008
Předmět:
Zdroj: European Journal of Combinatorics. 29:1353-1364
ISSN: 0195-6698
Popis: Consider a connected undirected bipartite graph G=([email protected]?A,E), with no edges inside I or A. For any vertex [email protected]?V, let N(v) be the set of neighbours of v. A code [email protected]?A is said to be discriminating if all the sets N(i)@?C, [email protected]?I, are nonempty and distinct. We study some properties of discriminating codes in particular classes of bipartite graphs, namely trees and, more generally, (bipartite) planar graphs.
Databáze: OpenAIRE