Some optimal inapproximability results

被引:850
作者
Håstad, J [1 ]
机构
[1] Royal Inst Technol, Dept Numer Anal & Comp Sci, S-10044 Stockholm, Sweden
关键词
theory; inapproximability; linear equations; max-sat; NP-hard optimization problems; probabilistically checkable proofs;
D O I
10.1145/502090.502098
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
We prove optimal, up to an arbitrary epsilon > 0, inapproximability results for Max-Ek-Sat for k greater than or equal to 3, maximizing the number of satisfied linear equations in an over-determined system of linear equations modulo a prime p and Set Splitting. As a consequence of these results we get improved lower bounds for the efficient approximability of many optimization problems studied previously. In particular, for Max-E2-Sat, Max-Cut, Max-di-Cut, and Vertex cover.
引用
收藏
页码:798 / 859
页数:62
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