• Close Relatives of Feedback Vertex Set Without Single-Exponential Algorithms Parameterized by Treewidth 

      Bergougnoux, Benjamin; Bonnet, Édouard; Brettell, Nick; Kwon, O-Joung (Journal article; Peer reviewed, 2020)
      The Cut & Count technique and the rank-based approach have lead to single-exponential FPT algorithms parameterized by treewidth, that is, running in time 2^𝒪(tw)n^𝒪(1), for Feedback Vertex Set and connected versions of ...
    • Towards a Polynomial Kernel for Directed Feedback Vertex Set 

      Bergougnoux, Benjamin; Eiben, Eduard; Ganian, Robert; Ordyniak, Sebastian; Ramanujan, M. S. (Journal article; Peer reviewed, 2020)
      In the DIRECTED FEEDBACK VERTEX SET (DFVS) problem, the input is a directed graph D and an integer k. The objective is to determine whether there exists a set of at most k vertices intersecting every directed cycle of D. ...