98 search results - page 6 / 20 » An agent-based algorithm for generalized graph colorings |
PODC
2009
ACM
14 years 8 months ago
2009
ACM
We present a randomized coloring algorithm for the unstructured radio network model, a model comprising autonomous nodes, asynchronous wake-up, no collision detection and an unkno...
NETWORKS
2010
13 years 5 months ago
2010
Let G = (V, E, Q) be a undirected graph, where V is the set of vertices, E is the set of edges, and Q = {Q1, . . . , Qq} is a partition of V into q subsets. We refer to Q1, . . . ...
ALGORITHMICA
2010
13 years 7 months ago
2010
We consider a graph with n vertices, and p < n pebbles of m colors. A pebble move consists of transferring a pebble from its current host vertex to an adjacent unoccupied verte...
ISAAC
2004
Springer
14 years 25 days ago
2004
Springer
We study complexity and approximation of min weighted node coloring in planar, bipartite and split graphs. We show that this problem is NP-complete in planar graphs, even if they a...
DAM
2011
13 years 2 months ago
2011
We study various optimization problems in t-subtree graphs, the intersection graphs of tsubtrees, where a t-subtree is the union of t disjoint subtrees of some tree. This graph cl...