Subset feedback vertex set is fixed parameter tractable

  title={Subset feedback vertex set is fixed parameter tractable},
  author={Marek Cygan and Marcin Pilipczuk and Michal Pilipczuk and Jakub Onufry Wojtaszczyk},
The classical FEEDBACK VERTEX SET problem asks, for a given undirected graph G and an integer k, to find a set of at most k vertices that hits all the cycles in the graph G. FEEDBACK VERTEX SET has attracted a large amount of research in the parameterized setting, and subsequent ke rnelization and fixed-parameter algorithms have been a rich source of ideas in the field. In this paper we consider a more general and difficult version of the problem, named S UBSET FEEDBACK VERTEX SET (SUBSET-FVS… CONTINUE READING