An O(2 O(k) n 3) FPT Algorithm for the Undirected Feedback Vertex Set Problem

2005 ◽  
pp. 859-869 ◽  
Author(s):  
Frank Dehne ◽  
Michael Fellows ◽  
Michael A. Langston ◽  
Frances Rosamond ◽  
Kim Stevens
Keyword(s):  
Feedback Vertex Set ◽  
Fpt Algorithm ◽  
Vertex Set ◽  
Feedback Vertex Set Problem

An O(2O(k)n3) FPT Algorithm for the Undirected Feedback Vertex Set Problem

2007 ◽  
Vol 41 (3) ◽  
pp. 479-492 ◽  
Author(s):  
Frank Dehne ◽  
Michael Fellows ◽  
Michael Langston ◽  
Frances Rosamond ◽  
Kim Stevens
Keyword(s):  
Feedback Vertex Set ◽  
Fpt Algorithm ◽  
Vertex Set ◽  
Feedback Vertex Set Problem

Parameterized complexity of fair feedback vertex set problem

2021 ◽  
Vol 867 ◽  
pp. 1-12
Author(s):  
Lawqueen Kanesh ◽  
Soumen Maity ◽  
Komal Muluk ◽  
Saket Saurabh
Keyword(s):  
Parameterized Complexity ◽  
Feedback Vertex Set ◽  
Vertex Set ◽  
Feedback Vertex Set Problem

scholarly journals On Structural Parameterizations of the Edge Disjoint Paths Problem

Algorithmica ◽  
2021 ◽  
Author(s):  
Robert Ganian ◽  
Sebastian Ordyniak ◽  
M. S. Ramanujan
Keyword(s):  
Polynomial Time ◽  
Disjoint Paths ◽  
Structural Parameter ◽  
Input Graph ◽  
Feedback Vertex Set ◽  
Fpt Algorithms ◽  
Edge Disjoint ◽  
Fpt Algorithm ◽  
Vertex Set ◽  
Terminal Pair

AbstractIn this paper we revisit the classical edge disjoint paths (EDP) problem, where one is given an undirected graph G and a set of terminal pairs P and asks whether G contains a set of pairwise edge-disjoint paths connecting every terminal pair in P. Our focus lies on structural parameterizations for the problem that allow for efficient (polynomial-time or FPT) algorithms. As our first result, we answer an open question stated in Fleszar et al. (Proceedings of the ESA, 2016), by showing that the problem can be solved in polynomial time if the input graph has a feedback vertex set of size one. We also show that EDP parameterized by the treewidth and the maximum degree of the input graph is fixed-parameter tractable. Having developed two novel algorithms for EDP using structural restrictions on the input graph, we then turn our attention towards the augmented graph, i.e., the graph obtained from the input graph after adding one edge between every terminal pair. In constrast to the input graph, where EDP is known to remain -hard even for treewidth two, a result by Zhou et al. (Algorithmica 26(1):3--30, 2000) shows that EDP can be solved in non-uniform polynomial time if the augmented graph has constant treewidth; we note that the possible improvement of this result to an FPT-algorithm has remained open since then. We show that this is highly unlikely by establishing the [1]-hardness of the problem parameterized by the treewidth (and even feedback vertex set) of the augmented graph. Finally, we develop an FPT-algorithm for EDP by exploiting a novel structural parameter of the augmented graph.

The Undirected Feedback Vertex Set Problem Has a Poly(k) Kernel

2006 ◽  
pp. 192-202 ◽  
Author(s):  
Kevin Burrage ◽  
Vladimir Estivill-Castro ◽  
Michael Fellows ◽  
Michael Langston ◽  
Shev Mac ◽  
...  
Keyword(s):  
Feedback Vertex Set ◽  
Vertex Set ◽  
Feedback Vertex Set Problem

Applying local search to the feedback vertex set problem

2013 ◽  
Vol 19 (5) ◽  
pp. 797-818 ◽  
Author(s):  
Philippe Galinier ◽  
Eunice Lemamou ◽  
Mohamed Wassim Bouzidi
Keyword(s):  
Local Search ◽  
Feedback Vertex Set ◽  
Vertex Set ◽  
Feedback Vertex Set Problem
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