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PP is closed under truth-table reductions. (English) Zbl 0851.68029

Summary: R. Beigel, the second author and D. Spielman [J. Comput. System. Sci. 50, No. 2, 191-202 (1995; Zbl 0827.68040)] showed that PP is closed under intersection and a variety of special cases of polynomial-time truth-table closure. We extend their techniques to show that PP is closed under general polynomial-time truth-table reductions. We also show that PP is closed under constant-round truth-table reductions.

MSC:

68Q05 Models of computation (Turing machines, etc.) (MSC2010)
68N99 Theory of software

Citations:

Zbl 0827.68040