83 search results - page 5 / 17 » An Improved Exact Algorithm for Cubic Graph TSP |
ICALP
2009
Springer
14 years 7 months ago
2009
Springer
We develop new structural results for apex-minor-free graphs and show their power by developing two new approximation algorithms. The first is an additive approximation for colorin...
MFCS
2007
Springer
14 years 1 months ago
2007
Springer
The notion of distance constrained graph labelings, motivated by the Frequency Assignment Problem, reads as follows: A mapping from the vertex set of a graph G = (V, E) into an in...
ISAAC
2004
Springer
14 years 26 days ago
2004
Springer
We study complexity and approximation of min weighted node coloring in planar, bipartite and split graphs. We show that this problem is NP-complete in planar graphs, even if they a...
IWPEC
2009
Springer
14 years 2 months ago
2009
Springer
Given an undirected graph with n nodes, the Maximum Leaf Spanning Tree problem is to find a spanning tree with as many leaves as possible. When parameterized in the number of leav...
CSR
2010
Springer
13 years 10 months ago
2010
Springer
Abstract. The Hamiltonian cycle problem (HCP) is an important combinatorial problem with applications in many areas. While thorough theoretical and experimental analyses have been ...