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arXiv 1610.09574cs.CCmath.COmath.LO
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鲁棒可满足性的间隙定理:布尔CSP及其他

Gap theorems for robust satisfiability: Boolean CSPs and beyond

Lucy Ham

摘要:

当两个不相交的实例集之间没有易处理的边界时,计算问题表现出“间隙性质”。我们建立了一个缺口三分定理的家庭的约束问题的变种,完全分类的复杂性可能的${\bf NP}$ -硬缺口的情况下,布尔域。因此,我们得到了一些二分法的约束满足问题的特定变体的复杂性:所有的多项式时间易处理或$\mathbf{NP}$完成。Schaefer最初对$\textsf{SAT}$变体的二分法是一个值得注意的特例。通用代数方法已中央最近的努力,在分类的复杂性约束满足问题。第二个贡献的文章是发展方面的代数方法的上下文中的一些变种的约束满足问题。特别是,这使我们能够将我们在布尔域上的结果提升到非布尔域上的许多模板。

英文摘要:

A computational problem exhibits a "gap property" when there is no tractable boundary between two disjoint sets of instances. We establish a Gap Trichotomy Theorem for a family of constraint problem variants, completely classifying the complexity of possible ${\bf NP}$-hard gaps in the case of Boolean domains. As a consequence, we obtain a number of dichotomies for the complexity of specific variants of the constraint satisfaction problem: all are either polynomial-time tractable or $\mathbf{NP}$-complete. Schaefer's original dichotomy for $\textsf{SAT}$ variants is a notable particular case. Universal algebraic methods have been central to recent efforts in classifying the complexity of constraint satisfaction problems. A second contribution of the article is to develop aspects of the algebraic approach in the context of a number of variants of the constraint satisfaction problem. In particular, this allows us to lift our results on Boolean domains to many templates on non-Boolean domains.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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