Many vertex-partitioning problems can be expressed within a general framework introduced by Telle and Proskurowski. They showed that optimization problems in this framework can be solved in polynomial time on classes of graphs with bounded tree-width. In this paper, we consider a very similar framew
โฆ LIBER โฆ
Clique-Width for 4-Vertex Forbidden Subgraphs
โ Scribed by Andreas Brandstadt; Joost Engelfriet; Hoang-Oanh Le; Vadim V. Lozin
- Publisher
- Springer
- Year
- 2006
- Tongue
- English
- Weight
- 342 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1433-0490
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The problem of finding a minimum weight k-vertex connected spanning sub-ลฝ . graph in a graph G s V, E is considered. For k G 2, this problem is known to be NP-hard. Based on the paper of Auletta, Dinitz, Nutov, and Parente in this issue, ร 4 we derive a 3-approximation algorithm for k g 4, 5 . This