Sciweavers

617 search results - page 1 / 124
» On the Chromatic Number of Random Graphs
Sort
View
108
Voted
RSA
2008
125views more  RSA 2008»
14 years 10 months ago
The game chromatic number of random graphs
: Given a graph G and an integer k, two players take turns coloring the vertices of G one by one using k colors so that neighboring vertices get different colors. The first player ...
Tom Bohman, Alan M. Frieze, Benny Sudakov
66
Voted
STOC
2004
ACM
134views Algorithms» more  STOC 2004»
15 years 11 months ago
The two possible values of the chromatic number of a random graph
Given d (0, ) let kd be the smallest integer k such that d < 2k log k. We prove that the chromatic number of a random graph G(n, d/n) is either kd or kd + 1 almost surely.
Dimitris Achlioptas, Assaf Naor
96
Voted
APPROX
2004
Springer
129views Algorithms» more  APPROX 2004»
15 years 4 months ago
The Chromatic Number of Random Regular Graphs
Given any integer d ≥ 3, let k be the smallest integer such that d < 2k log k. We prove that with high probability the chromatic number of a random d-regular graph is k, k + 1...
Dimitris Achlioptas, Cristopher Moore
132
Voted
ENDM
2000
121views more  ENDM 2000»
14 years 10 months ago
Finding the chromatic number by means of critical graphs
We propose a new exact algorithm for finding the chromatic number of a graph G. The algorithm attempts to determine the smallest possible induced subgraph G' of G which has t...
Francine Herrmann, Alain Hertz
92
Voted
COMBINATORICS
2007
118views more  COMBINATORICS 2007»
14 years 10 months ago
On the Quantum Chromatic Number of a Graph
We investigate the notion of quantum chromatic number of a graph, which is the minimal number of colours necessary in a protocol in which two separated provers can convince a refe...
Peter J. Cameron, Ashley Montanaro, Michael W. New...