30 search results - page 3 / 6 » Contractibility and the Hadwiger Conjecture |
RISE
2005
Springer
13 years 11 months ago
2005
Springer
Design by ContractTM is commonly cited as an example of the “crosscutting” concerns that aspect-oriented programming can address. We test this conjecture by attempting to imple...
DM
2008
13 years 6 months ago
2008
We show that the conjectures by Matthews and Sumner (every 4-connected claw-free graph is hamiltonian), by Thomassen (every 4-connected line graph is hamiltonian) and by Fleischne...
ICALP
2009
Springer
14 years 6 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...
EJC
2008
13 years 6 months ago
2008
We study restricted homomorphism dualities in the context of classes with bounded expansion. This presents a generalization of restricted dualities obtained earlier for bounded deg...
SIAMDM
2010
13 years 25 days ago
2010
Let G be a graph with n vertices and independence number . Hadwiger's conjecture implies that G contains a clique minor of order at least n/. In 1982, Duchet and Meyniel prov...