Optimization problems in multiple subtree graphs

12 years 11 months ago
Optimization problems in multiple subtree graphs
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 class generalizes both the class of chordal graphs and the class of t-interval graphs, a generalization of interval graphs that has recently been studied from a combinatorial optimization point of view. We present approximation algorithms for the Maximum Independent Set, Minimum Coloring, Minimum Vertex Cover, Minimum Dominating Set, and Maximum Clique problems.
Danny Hermelin, Dror Rawitz
Added 13 May 2011
Updated 13 May 2011
Type Journal
Year 2011
Where DAM
Authors Danny Hermelin, Dror Rawitz
Comments (0)