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Publication
CCC 2005
Conference paper
On the hardness of approximating multicut and sparsest-cut
Abstract
We show that the MULTICUT, SPARSEST-CUT, and MIN-2CNF= DELETION problems are NP-hard to approximate within every constant factor, assuming the Unique Games Conjecture of Khot [STOC, 2002]. A quantitatively stronger version of the conjecture implies inapproximability factor of Ω(log log n). © 2005 IEEE.