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More on BPP and the polynomial-time hierarchy. (English) Zbl 0875.68425
Summary: We simplify known proofs that BPP lies within the Polynomial-time Hierarchy. Furthermore, our simple proof shows that BPP is contained in a complexity class that presumably lies even lower in this Hierarchy than was previously known. Our technique also simplifies the proof that one-sided-error IP equals two-sided-error IP.

MSC:
68Q15 Complexity classes (hierarchies, relations among complexity classes, etc.)
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