871 search results - page 4 / 175 » The vertex-cover polynomial of a graph |
142
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GC
2002
Springer
15 years 6 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...
187
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APPROX
2006
Springer
15 years 10 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...
183
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ADHOCNOW
2008
Springer
16 years 1 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...
173
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WEA
2005
Springer
16 years 4 days 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...
192
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ISAAC
2007
Springer
16 years 24 days 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...