Title
The L(2,1)-labeling on planar graphs
Abstract
Given non-negative integers j and k, an L(j,k)-labeling of a graph G is a function f from the vertex set V(G) to the set of all non-negative integers such that |f(x)−f(y)|≥j if d(x,y)=1 and |f(x)−f(y)|≥k if d(x,y)=2. The L(j,k)-labeling number λj,k is the smallest number m such that there is an L(j,k)-labeling with the largest value m and the smallest label 0. This paper presents upper bounds on λ2,1 and λ2,1 of a graph G in terms of the maximum degree of G for several classes of planar graphs. These bounds are the same as or better than previous results for the maximum degree less than or equal to 4.
Year
DOI
Venue
2007
10.1016/j.aml.2006.02.033
Applied Mathematics Letters
Keywords
Field
DocType
Channel assignment,Distance two graph labeling
Integer,Graph,Discrete mathematics,Combinatorics,Vertex (geometry),Upper and lower bounds,Degree (graph theory),Mathematics,Planar graph,Graph labelling
Journal
Volume
Issue
ISSN
20
2
0893-9659
Citations 
PageRank 
References 
9
0.56
13
Authors
2
Name
Order
Citations
PageRank
Zhendong Shao1678.60
Roger K. Yeh252138.16