328 search results - page 25 / 66 » Homomorphism bounded classes of graphs |
CORR
2010
Springer
13 years 2 months ago
2010
Springer
Unique-sink orientations (USOs) are an abstract class of orientations of the ncube graph. We consider some classes of USOs that are of interest in connection with the linear compl...
WG
2007
Springer
14 years 2 months ago
2007
Springer
In the Planar +k vertex problem the task is to find at most k vertices whose deletion makes the given graph planar. The graphs for which there exists a solution form a minor close...
AAIM
2007
Springer
14 years 2 months ago
2007
Springer
An acyclic edge colouring of a graph is a proper edge colouring having no 2-coloured cycle, that is, a colouring in which the union of any two colour classes forms a linear forest...
ISAAC
2007
Springer
14 years 2 months ago
2007
Springer
Valiant introduced some 25 years ago an algebraic model of computation along with the complexity classes VP and VNP, which can be viewed as analogues of the classical classes P and...
SIAMDM
2008
13 years 8 months ago
2008
We first show that for any bipartite graph H with at most five vertices, there exists an on-line competitive algorithm for the class of H-free bipartite graphs. We then analyze th...