643 search results - page 13 / 129 » Supereulerian planar graphs |
WG
2007
Springer
14 years 1 months ago
2007
Springer
We study a variation of the vertex cover problem where it is required that the graph induced by the vertex cover is connected. We prove that this problem is polynomial in chordal g...
ISAAC
2004
Springer
14 years 28 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...
COMGEO
2011
ACM
13 years 2 months ago
2011
ACM
A set of planar graphs share a simultaneous embedding if they can be drawn on the same vertex set V in the Euclidean plane without crossings between edges of the same graph. Fixed ...
GD
2009
Springer
14 years 5 days ago
2009
Springer
A graph G is a support for a hypergraph H = (V, S) if the vertices of G correspond to the vertices of H such that for each hyperedge Si ∈ S the subgraph of G induced by Si is co...
FOCS
2009
IEEE
14 years 2 months ago
2009
IEEE
— We show that for every fixed k, there is a linear time algorithm that decides whether or not a given graph has a vertex set X of order at most k such that G − X is planar (w...