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arXiv 1604.08558cs.CC
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多项式时间核约简

Polynomial-time kernel reductions

Jeffrey Finkelstein, Benjamin Hescott

摘要:

在计算复杂性的框架内,并在努力定义一个更自然的减少等价问题,我们调查最近推出的内核减少,减少对每个元素的一对独立的操作。本文详细介绍了核约简的局限性和用途。我们表明,核减少是弱于许多-一减少,并提供条件下,完整的问题存在。最终,等价类的数量和大小可以决定核约简的存在。我们留下未解决的多项式时间内核减少标准的复杂性类下的一个完整的问题的无条件存在。

英文摘要:

In the framework of computational complexity and in an effort to define a more natural reduction for problems of equivalence, we investigate the recently introduced kernel reduction, a reduction that operates on each element of a pair independently. This paper details the limitations and uses of kernel reductions. We show that kernel reductions are weaker than many-one reductions and provide conditions under which complete problems exist. Ultimately, the number and size of equivalence classes can dictate the existence of a kernel reduction. We leave unsolved the unconditional existence of a complete problem under polynomial-time kernel reductions for the standard complexity classes.

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