130 search results - page 2 / 26 » Online Coloring Known Graphs |
WAOA
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. A strong vertex coloring of a hypergraph assigns distinct colors to vertices that are contained in a common hyperedge. This captures many previously studied graph colorin...
ICALP
2005
Springer
13 years 10 months ago
2005
Springer
We study interval coloring problems and present new upper and lower bounds for several variants. We are interested in four problems, online coloring of intervals with and without b...
FSTTCS
2000
Springer
13 years 8 months ago
2000
Springer
We investigate a variant of on-line edge-coloring in which there is a fixed number of colors availableandtheaimistocolorasmanyedgesaspossible.Weproveupperandlowerboundsontheperform...
FOCS
2002
IEEE
13 years 10 months ago
2002
IEEE
We prove that coloring a 3-uniform 2-colorable hypergraph with c colors is NP-hard for any constant c. The best known algorithm [20] colors such a graph using O(n1/5 ) colors. Our...
ALGORITHMICA
2002
13 years 5 months ago
2002
A proper coloring of the edges of a graph G is called acyclic if there is no 2-colored cycle in G. The acyclic edge chromatic number of G, denoted by a (G), is the least number of...