723 search results - page 7 / 145 » On the hyperbolicity constant in graphs |
169
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STOC
2006
ACM
16 years 6 months ago
2006
ACM
We study the maximum edge-disjoint paths problem in undirected planar graphs: given a graph G and node pairs s1t1, s2t2, . . ., sktk, the goal is to maximize the number of pairs t...
172
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SIROCCO
2007
15 years 7 months ago
2007
We consider the problem of periodic exploration of all nodes in undirected graphs by using a nite state automaton called later a robot. The robot, using a constant number of state...
227
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APPROX
2006
Springer
15 years 9 months ago
2006
Springer
For a given graph with weighted vertices, the goal of the minimum-weight dominating set problem is to compute a vertex subset of smallest weight such that each vertex of the graph...
152
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FOCS
2004
IEEE
15 years 9 months ago
2004
IEEE
We study a simple Markov chain, known as the Glauber dynamics, for generating a random k-coloring of a n-vertex graph with maximum degree . We prove that, for every > 0, the d...
