90 search results - page 8 / 18 » Connecting face hitting sets in planar graphs |
JGT
2008
13 years 7 months ago
2008
Let C be a family of n compact connected sets in the plane, whose intersection graph G(C) has no complete bipartite subgraph with k vertices in each of its classes. Then G(C) has ...
COCOA
2010
Springer
13 years 5 months ago
2010
Springer
A plane graph is a drawing of a planar graph in the plane such that no two edges cross each other. A rooted plane graph has a designated outer vertex. For given positive integers ...
SIAMCOMP
2010
13 years 5 months ago
2010
Abstract. We study the Edge Disjoint Paths (EDP) problem in undirected graphs: Given a graph G with n nodes and a set T of pairs of terminals, connect as many terminal pairs as pos...
MFCS
1998
Springer
13 years 11 months ago
1998
Springer
It is known that a language is context-free iff it is the set of borders of the trees of recognizable set, where the border of a (labelled) tree is the word consisting of its leaf ...
WG
2010
Springer
13 years 5 months ago
2010
Springer
Θk-graphs are geometric graphs that appear in the context of graph navigation. The shortest-path metric of these graphs is known to approximate the Euclidean complete graph up to...