Graph Separators: A Parameterized View

  • Authors:
  • Jochen Alber;Henning Fernau;Rolf Niedermeier

  • Affiliations:
  • -;-;-

  • Venue:
  • COCOON '01 Proceedings of the 7th Annual International Conference on Computing and Combinatorics
  • Year:
  • 2001

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Abstract

Graph separation is a well-known tool to make (hard) graph problems accessible for a divide and conquer approach. We show how to use graph separator theorems in order to develop fixed parameter algorithms for many well-known NP-hard (planar) graph problems. We coin the key notion of glueable select&verify graph problems and derive from that a prospective way to easily check whether a planar graph problem will allow for a fixed parameter divide and conquer algorithm of running time c√k ċ nO(1) for a constant c.