111 search results - page 6 / 23 » Solving the feedback vertex set problem on undirected graphs |
TAMC
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. Given an undirected graph G and an integer k ≥ 0, the NPhard 2-Layer Planarization problem asks whether G can be transformed into a forest of caterpillar trees by remov...
MFCS
2010
Springer
13 years 5 months ago
2010
Springer
The problem of finding a satisfying assignment for a 2-SAT formula that minimizes the number of variables that are set to 1 (min ones 2–sat) is NP-complete. It generalizes the w...
STOC
2004
ACM
14 years 7 months ago
2004
ACM
Let f be an integer valued function on a finite set V . We call an undirected graph G(V, E) a neighborhood structure for f. The problem of finding a local minimum for f can be phr...
SODA
2012
ACM
11 years 10 months ago
2012
ACM
Bidimensionality theory was introduced by Demaine et al. [JACM 2005 ] as a framework to obtain algorithmic results for hard problems on minor closed graph classes. The theory has ...
ESA
2006
Springer
13 years 11 months ago
2006
Springer
We consider the following vertex coloring problem. We are given an undirected graph G = (V, E), where each vertex v is associated with a penalty rejection cost rv. We need to choos...