117 search results - page 11 / 24 » Polarity of chordal graphs |
SIAMDM
2008
13 years 7 months ago
2008
We consider the class of graphs that contain no bull, no odd hole, and no antihole of length at least five. We present a new algorithm that colors optimally the vertices of every g...
MFCS
2007
Springer
14 years 1 months ago
2007
Springer
We resolve the computational complexity of determining the treelength of a graph, thereby solving an open problem of Dourisboure and Gavoille, who introduced this parameter, and a...
DM
2010
13 years 7 months ago
2010
A set of vertices D of a graph G is geodetic if every vertex of G lies on a shortest path between two not necessarily distinct vertices in D. The geodetic number of G is the minimu...
WALCOM
2010
IEEE
14 years 2 months ago
2010
IEEE
Given a simple graph G, a harmonious coloring of G is a proper vertex coloring such that each pair of colors appears together on at most one edge. The harmonious chromatic number i...
JAL
2006
13 years 7 months ago
2006
We present a new algorithm, called LB-Triang, which computes minimal triangulations. We give both a straightforward O(nm0) time implementation and a more involved O(nm) time imple...