Fast Algorithms for min independent dominating set

  • Nicolas Bourgeois
  • Bruno Escoffier
  • Vangelis Th. Paschos
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6058)


We first devise a branching algorithm that computes a minimum independent dominating set with running time O *(20.424n ) and polynomial space. This improves the O *(20.441n ) result by (S. Gaspers and M. Liedloff, A branch-and-reduce algorithm for finding a minimum independent dominating set in graphs, Proc. WG’06). We then study approximation of the problem by moderately exponential algorithms and show that it can be approximated within ratio 1 + ε, for any ε> 0, in a time smaller than the one of exact computation and exponentially decreasing with ε. We also propose approximation algorithms with better running times for ratios greater than 3.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Nicolas Bourgeois
    • 1
  • Bruno Escoffier
    • 1
  • Vangelis Th. Paschos
    • 1
  1. 1.LAMSADECNRS and Université Paris-DauphineParisFrance

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