Collapsing degrees in subexponential time

Proceedings of IEEE 9th Annual Conference on Structure in Complexity Theory Pub Date : 1994-06-28 DOI:10.1109/SCT.1994.315788

D. Joseph, R. Pruim, Paul Young

引用次数: 4

Abstract

We show that there are subexponential deterministic time classes that have collapsing degrees. In particular, we prove the following: Let t be any effectively superpolynomial time bound. Then there is a set A/spl isin/DTIME(t) such that every set B/spl isin/deg/sub msup p/(A) is p-isomorphic to A.<>

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次指数时间内的坍缩度

我们证明了存在具有坍缩度的次指数确定性时间类。特别地，我们证明了以下几点:设t是任意有效的超多项式时间界。那么存在一个集合a /spl isin/DTIME(t)，使得每个集合B/spl isin/deg/ submsup p/(a)与a p同构>

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of IEEE 9th Annual Conference on Structure in Complexity Theory

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