# A faster FPT algorithm for Bipartite Contraction

Guillemot, Sylvain and Marx, Dániel
(2013)
*A faster FPT algorithm for Bipartite Contraction.*
INFORMATION PROCESSING LETTERS, 113 (22-24).
pp. 906-912.
ISSN 0020-0190
MTMT:2476627; doi:10.1016/j.ipl.2013.09.004

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## Abstract

The Bipartite Contraction problem is to decide, given a graph G and a parameter k, whether we can obtain a bipartite graph from G by at most k edge contractions. The fixed-parameter tractability of the problem was shown by Heggernes et al. [13], with an algorithm whose running time has double-exponential dependence on k. We present a new randomized FPT algorithm for the problem, which is both conceptually simpler and achieves an improved 2O(k2)nm running time, i.e., avoiding the double-exponential dependence on k. The algorithm can be derandomized using standard techniques. © 2013 Elsevier B.V.

Item Type: | ISI Article |
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Subjects: | Q Science > QA Mathematics and Computer Science > QA75 Electronic computers. Computer science / számítástechnika, számítógéptudomány |

SWORD Depositor: | MTMT Injector |

Depositing User: | EPrints Admin |

Date Deposited: | 05 Feb 2014 12:32 |

Last Modified: | 05 Feb 2014 15:46 |

URI: | http://eprints.sztaki.hu/id/eprint/7525 |

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