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» A new upper bound on the cyclic chromatic number
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ENDM
2006
119views more  ENDM 2006»
13 years 5 months ago
The incidence game chromatic number
We introduce the incidence game chromatic number which unifies the ideas of game chromatic number and incidence coloring number of an undirected graph. For kdegenerate graphs with...
Stephan Dominique Andres
ICANNGA
2007
Springer
141views Algorithms» more  ICANNGA 2007»
13 years 11 months ago
On Sum Coloring of Graphs with Parallel Genetic Algorithms
Abstract. Chromatic number, chromatic sum and chromatic sum number are important graph coloring characteristics. The paper proves that a parallel metaheuristic like the parallel ge...
Zbigniew Kokosinski, Krzysztof Kwarciany
COLOGNETWENTE
2009
13 years 6 months ago
Two Upper Bounds on the Chromatic Number
María Soto, André Rossi, Marc Sevaux
GD
2005
Springer
13 years 11 months ago
Bar k-Visibility Graphs: Bounds on the Number of Edges, Chromatic Number, and Thickness
Let S be a set of horizontal line segments, or bars, in the plane. We say that G is a bar visibility graph, and S its bar visibility representation, if there exists a one-to-one co...
Alice M. Dean, William Evans, Ellen Gethner, Joshu...
IWOCA
2009
Springer
157views Algorithms» more  IWOCA 2009»
13 years 12 months ago
Forbidden Subgraph Colorings and the Oriented Chromatic Number
: We present an improved upper bound of O(d1+ 1 m−1 ) for the (2, F)-subgraph chromatic number χ2,F (G) of any graph G of maximum degree d. Here, m denotes the minimum number of...
N. R. Aravind, C. R. Subramanian