COLORING OF THE dth POWER OF THE FACE-CENTERED CUBIC GRID

Affiliation auteursAffiliation ok
TitreCOLORING OF THE dth POWER OF THE FACE-CENTERED CUBIC GRID
Type de publicationJournal Article
Year of Publication2021
AuteursGastineau N, Togni O
JournalDISCUSSIONES MATHEMATICAE GRAPH THEORY
Volume41
Pagination1001-1020
Type of ArticleArticle
ISSN1234-3099
Mots-clésdistance coloring, dth power of graph, face-centered cubic grid
Résumé

The face-centered cubic grid is a three dimensional 12-regular infinite grid. This graph represents an optimal way to pack spheres in the three-dimensional space. We give lower and upper bounds on the chromatic number of the dth power of the face-centered cubic grid. In particular, in the case d = 2 we prove that the chromatic number of this grid is 13. We also determine sharper bounds for d = 3 and for subgraphs of the face-centered cubic grid.

DOI10.7151/dmgt.2257