383 search results - page 2 / 77 » A Bound on the Total Chromatic Number |
MP
2010
13 years 6 months ago
2010
The Lov´asz theta number of a graph G can be viewed as a semidefinite programming relaxation of the stability number of G. It has recently been shown that a copositive strengthe...
ICANNGA
2007
Springer
14 years 1 months ago
2007
Springer
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...
JGT
2007
13 years 7 months ago
2007
IWOCA
2009
Springer
14 years 2 months ago
2009
Springer
: 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...
GD
2005
Springer
14 years 1 months ago
2005
Springer
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...