Title
New results on two hypercube coloring problems
Abstract
In this paper, we study the following two hypercube coloring problems: given n and d, find the minimum number of colors, denoted as @g"d^'(n) (resp. @g"d(n)), needed to color the vertices of the n-cube such that any two vertices with Hamming distance at most d (resp. exactly d) have different colors. These problems originally arose in the study of the scalability of optical networks. Using methods in coding theory, we show that @g"5^'(2^r^+^1)=4^r^+^1 for any odd number r=3, and give two upper bounds on @g"d(n). The first upper bound improves on that of Kim, Du and Pardalos. The second upper bound improves on the first one for small n. Furthermore, we derive an inequality on @g"d(n) and @g"d^'(n).
Year
DOI
Venue
2013
10.1016/j.dam.2013.07.006
Discrete Applied Mathematics
Keywords
Field
DocType
optical network,hamming distance,new result,z4-linear,small n,- hypercube,different color,minimum number,linear codes,odd number,coloring problem,coding theory,upper bound,hypercube
Discrete mathematics,Combinatorics,Vertex (geometry),Upper and lower bounds,Coding theory,Hamming distance,Mathematics,Hypercube
Journal
Volume
Issue
ISSN
161
18
0166-218X
Citations 
PageRank 
References 
3
0.49
16
Authors
3
Name
Order
Citations
PageRank
Fu Fang-Wei138157.23
San Ling21284108.96
Chaoping Xing3916110.47