Products of Geodesic Graphs and the Geodetic Number of Products

Autor: Soloff Jake A., Márquez Rommy A., Friedler Louis M.
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Discussiones Mathematicae Graph Theory, Vol 35, Iss 1, Pp 35-42 (2015)
Druh dokumentu: article
ISSN: 2083-5892
DOI: 10.7151/dmgt.1774
Popis: Given a connected graph and a vertex x ∈ V (G), the geodesic graph Px(G) has the same vertex set as G with edges uv iff either v is on an x − u geodesic path or u is on an x − v geodesic path. A characterization is given of those graphs all of whose geodesic graphs are complete bipartite. It is also shown that the geodetic number of the Cartesian product of Km,n with itself, where m, n ≥ 4, is equal to the minimum of m, n and eight.
Databáze: Directory of Open Access Journals