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Isomorphism for Graphs of Bounded Feedback Vertex Set Number
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FOCS
2008
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Theoretical Computer Science
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Beating the Random Ordering is Hard: Inapproximability of Maximum Acyclic Subgraph
14 years 2 months ago
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We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
Venkatesan Guruswami, Rajsekar Manokaran, Prasad R...
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