871 search results - page 4 / 175 » The vertex-cover polynomial of a graph |
GC
2002
Springer
14 years 9 months ago
2002
Springer
It is shown that the Hilbert series of the face ring of a clique complex (equivalently, flag complex) of a graph G is, up to a factor, just a specialization of SG (x, y), the subg...
APPROX
2006
Springer
15 years 1 months ago
2006
Springer
Abstract. This paper investigates the relationship between the dimension theory of partial orders and the problem of scheduling precedenceconstrained jobs on a single machine to mi...
ADHOCNOW
2008
Springer
15 years 3 months ago
2008
Springer
We present 1 − approximation algorithms for the maximum matching problem in location aware unit disc graphs and in growth-bounded graphs. The algorithm for unit disk graph is loc...
WEA
2005
Springer
15 years 3 months ago
2005
Springer
The vertex cover problem is a classic NP-complete problem for which the best worst-case approximation ratio is roughly 2. In this paper, we use a collection of simple reductions, e...
ISAAC
2007
Springer
15 years 3 months ago
2007
Springer
The class of graphs where the size of a minimum vertex cover equals that of a maximum matching is known as K¨onig-Egerv´ary graphs. K¨onig-Egerv´ary graphs have been studied ex...