211 search results - page 23 / 43 » Counting the number of independent sets in chordal graphs |
GC
2008
Springer
13 years 7 months ago
2008
Springer
In this paper we study the class of weakly quasi-threshold graphs that are obtained from a vertex by recursively applying the operations (i) adding a new isolated vertex, (ii) addi...
STOC
2002
ACM
14 years 8 months ago
2002
ACM
A string graph is the intersection graph of a set of curves in the plane. Each curve is represented by a vertex, and an edge between two vertices means that the corresponding curv...
STACS
2010
Springer
14 years 2 months ago
2010
Springer
We present a method for reducing the treewidth of a graph while preserving all the minimal s−t separators. This technique turns out to be very useful in the design of parameteriz...
FOCS
2009
IEEE
14 years 2 months ago
2009
IEEE
—We introduce a new tool for approximation and testing algorithms called partitioning oracles. We develop methods for constructing them for any class of bounded-degree graphs wit...
DAM
2008
13 years 7 months ago
2008
We consider the vertex coloring problem, which may be stated as the problem of minimizing the number of labels that can be assigned to the vertices of a graph G such that each ver...