12 search results - page 1 / 3 » Intersection Graphs of Pseudosegments: Chordal Graphs |
JGAA
2010
13 years 3 months ago
2010
We investigate which chordal graphs have a representation as intersection graphs of pseudosegments. For positive we have a construction which shows that all chordal graphs that ca...
WAOA
2010
Springer
13 years 3 months ago
2010
Springer
We study approximation solutions for the densest k-subgraph problem (DS-k) on several classes of intersection graphs. We adopt the concept of -quasi elimination orders, introduced ...
DAM
2011
13 years 8 days ago
2011
We study various optimization problems in t-subtree graphs, the intersection graphs of tsubtrees, where a t-subtree is the union of t disjoint subtrees of some tree. This graph cl...
GD
2004
Springer
13 years 10 months ago
2004
Springer
Pinchasi and Radoiˇci´c [11] used the following observation to bound the number of edges of a topological graph without a self-crossing cycle of length 4: if we make a list of t...
DAM
2007
13 years 5 months ago
2007
: Gavril [GA4] defined two new families of intersection graphs: the interval-filament graphs and the subtree-filament graphs. The complements of intervalfilament graphs are the coi...