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» Graphs with Chromatic Roots in the Interval (1, 2)
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JCT
2006
73views more  JCT 2006»
13 years 7 months ago
Colouring lines in projective space
Let V be a vector space of dimension v over a field of order q. The q-Kneser graph has the kdimensional subspaces of V as its vertices, where two subspaces and are adjacent if and...
Ameera Chowdhury, Chris D. Godsil, Gordon F. Royle
SODA
2000
ACM
121views Algorithms» more  SODA 2000»
13 years 8 months ago
Coloring powers of planar graphs
We give nontrivial bounds for the inductiveness or degeneracy of power graphs Gk of a planar graph G. This implies bounds for the chromatic number as well, since the inductiveness ...
Geir Agnarsson, Magnús M. Halldórsso...
DAM
2006
124views more  DAM 2006»
13 years 7 months ago
Coloring copoints of a planar point set
To a set of n points in the plane, one can associate a graph that has less than n2 vertices and has the property that k-cliques in the graph correspond vertex sets of convex k-gon...
Walter Morris
COMBINATORICS
2004
78views more  COMBINATORICS 2004»
13 years 7 months ago
Chromatically Unique Multibridge Graphs
Let (a1, a2,
Feng Ming Dong, Kee L. Teo, Charles H. C. Little, ...
ISAAC
2005
Springer
110views Algorithms» more  ISAAC 2005»
14 years 26 days ago
Minimum Entropy Coloring
Abstract We study an information-theoretic variant of the graph coloring problem in which the objective function to minimize is the entropy of the coloring. The minimum entropy of ...
Jean Cardinal, Samuel Fiorini, Gwenaël Joret