On Directed Covering and Domination Problems

  title={On Directed Covering and Domination Problems},
  author={Tesshu Hanaka and Naomi Nishimura and Hirotaka Ono},
In this paper, we study covering and domination problems on directed graphs. Although undirected Vertex Cover and Edge Dominating Set are well-studied classical graph problems, the directed versions have not been studied much due to the lack of clear definitions. We give natural definitions for Directed r-In (Out) Vertex Cover and Directed (p, q)Edge Dominating Set as directed generations of Vertex Cover and Edge Dominating Set. For these problems, we show that (1) Directed r-In (Out) Vertex… CONTINUE READING


Publications citing this paper.

Similar Papers

Loading similar papers…