244 search results - page 12 / 49 » Intervalizing k-Colored Graphs |
COMBINATORICS
2007
14 years 9 months ago
2007
We present an infinite family of 3-connected non-bipartite graphs with chromatic roots in the interval (1, 2) thus resolving a conjecture of Jackson’s in the negative. In addit...
DAM
2006
14 years 9 months ago
2006
Subtree filament graphs are the intersection graphs of subtree filaments in a tree. This class of graphs contains subtree overlap graphs, interval filament graphs, chordal graphs,...
107
Voted
COLOGNETWENTE
2010
14 years 8 months ago
2010
An interval total t coloring of a graph G is a total coloring of with colors 1, such that at least one vertex or edge of is colored by color − G 2, ,t… G , 1, 2, ,i i t= … ,...
70
Voted
EOR
2008
14 years 9 months ago
2008
Multicut is a fundamental network communication and connectivity problem. It is defined as: given an undirected graph and a collection of pairs of terminal vertices, find a minimu...
80
Voted
ESA
2000
Springer
15 years 1 months ago
2000
Springer
The p-center problem is to locate p facilities on a network so as to minimize the largest distance from a demand point to its nearest facility. The p-median problem is to locate p ...