Article ID Journal Published Year Pages File Type
4648900 Discrete Mathematics 2010 10 Pages PDF
Abstract

A ranking of a graph is a labeling of the vertices with positive integers such that any path between vertices of the same label contains a vertex of greater label. The rank number of a graph is the smallest possible number of labels in a ranking. We find rank numbers of the Möbius ladder, Ks×PnKs×Pn, and P3×PnP3×Pn. We also find bounds for rank numbers of general grid graphs Pm×PnPm×Pn.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
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