On the inapproximability of the exemplar conserved interval distance problem of genomes

@article{Chen2008OnTI,
  title={On the inapproximability of the exemplar conserved interval distance problem of genomes},
  author={Zhixiang Chen and Richard H. Fowler and Bin Fu and Binhai Zhu},
  journal={J. Comb. Optim.},
  year={2008},
  volume={15},
  pages={201-221}
}
In this paper we present two main results about the inapproximability of the exemplar conserved interval distance problem of genomes. First, we prove that it is NP-complete to decide whether the exemplar conserved interval distance between any two genomes is zero or not. This result implies that the exemplar conserved interval distance problem does not admit any approximation in polynomial time, unless P = NP . In fact, this result holds, even when every gene appears in each of the given… CONTINUE READING

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