Sciweavers

836 search results - page 29 / 168
» Orthogonal Colorings of Graphs
Sort
View
DAM
2008
78views more  DAM 2008»
14 years 11 months ago
On classes of minimal circular-imperfect graphs
Circular-perfect graphs form a natural superclass of perfect graphs: on the one hand due to their definition by means of a more general coloring concept, on the other hand as an i...
Arnaud Pêcher, Annegret Wagler
FSTTCS
2007
Springer
15 years 6 months ago
"Rent-or-Buy" Scheduling and Cost Coloring Problems
We study several cost coloring problems, where we are given a graph and a cost function on the independent sets and are to find a coloring that minimizes the function costs of the...
Takuro Fukunaga, Magnús M. Halldórss...
CORR
2010
Springer
168views Education» more  CORR 2010»
14 years 12 months ago
Upper oriented chromatic number of undirected graphs and oriented colorings of product graphs
The oriented chromatic number of an oriented graph G is the minimum order of an oriented graph H such that G admits a homomorphism to H. The oriented chromatic number of an undire...
Eric Sopena
CORR
2004
Springer
111views Education» more  CORR 2004»
14 years 11 months ago
Coloring Meyniel graphs in linear time
A Meyniel graph is a graph in which every odd cycle of length at least five has two chords. We present a linear-time algorithm that colors optimally the vertices of a Meyniel grap...
Benjamin Lévêque, Frédé...