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arXiv 1909.04871cs.CC
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承诺约束满足问题的代数理论,第一步

Algebraic Theory of Promise Constraint Satisfaction Problems, First Steps

Libor Barto

摘要:

什么使计算问题变得容易(例如,在P中,即,在多项式时间内可解)或困难(例如,NP-hard)?这一基本问题现在对于相当广泛的一类计算问题有了满意的答案,即所谓的固定模板约束满足问题(CSP)--事实证明,它们的复杂性是由某种特定形式的对称性所捕获的。本文解释了这一理论的扩展到更广泛的一类计算问题,承诺CSP,其中包括放松版本的CSP,如找到一个137-着色的3-着色图的问题。

英文摘要:

What makes a computational problem easy (e.g., in P, that is, solvable in polynomial time) or hard (e.g., NP-hard)? This fundamental question now has a satisfactory answer for a quite broad class of computational problems, so called fixed-template constraint satisfaction problems (CSPs) -- it has turned out that their complexity is captured by a certain specific form of symmetry. This paper explains an extension of this theory to a much broader class of computational problems, the promise CSPs, which includes relaxed versions of CSPs such as the problem of finding a 137-coloring of a 3-colorable graph.

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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