8 search results - page 1 / 2 » A note on the Hadwiger number of circular arc graphs |
IPL
2007
13 years 7 months ago
2007
Abstract. The intention of this note is to motivate the researchers to study Hadwiger’s conjecture for circular arc graphs. Let η(G) denote the largest clique minor of a graph G...
WG
2007
Springer
14 years 1 months ago
2007
Springer
The pathwidth of a graph G is the minimum clique number of H minus one, over all interval supergraphs H of G. Although pathwidth is a well-known and well-studied graph parameter, t...
SIAMCOMP
1998
13 years 7 months ago
1998
This paper first presents a unified approach to design efficient algorithms for the weighted domination problem and its three variants, i.e., the weighted independent, connected,...
GD
2003
Springer
14 years 23 days ago
2003
Springer
In this paper we consider the problem of drawing a planar graph using circular arcs as edges, given a one-to-one mapping between the vertices of the graph and a set of points in t...
EJC
2008
13 years 7 months ago
2008
Gerards and Seymour (see [T.R. Jensen, B. Toft, Graph Coloring Problems, Wiley-Interscience, 1995], page 115) conjectured that if a graph has no odd complete minor of order p, the...