# Completely inapproximable monotone and antimonotone parameterized problems

Marx, Dániel
(2013)
*Completely inapproximable monotone and antimonotone parameterized problems.*
JOURNAL OF COMPUTER AND SYSTEM SCIENCES, 79 (1).
pp. 144-151.
ISSN 0022-0000
MTMT:2156221; doi:10.1016/j.jcss.2012.09.001

Text
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## Abstract

We prove that weighted circuit satisfiability for monotone or antimonotone circuits has no fixed-parameter tractable approximation algorithm with any approximation ratio function ρ, unless FPT≠W[1]. In particular, not having such an fpt-approximation algorithm implies that these problems have no polynomial-time approximation algorithms with ratio ρ(OPT) for any nontrivial function ρ. © 2012 Elsevier Inc.

Item Type: | ISI Article |
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Uncontrolled Keywords: | Approximation algorithms, Networks (circuits), Formal logic, Polynomial-time approximation algorithms, Parameterized problems, Non-trivial function, Approximation ratios, Inapproximability, Fixed-parameter tractability, CIRCUITS, Circuit satisfiability |

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 12:32 |

URI: | http://eprints.sztaki.hu/id/eprint/7527 |

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