Eccc Tr 97 - 045

نویسنده

  • Oded Goldreich
چکیده

We provide another proof of the Sipser{Lautemann Theorem by which BPP MA (PH). The current proof is based on strong results regarding the ampliication of BPP, due to Zuck-erman. Given these results, the current proof is even simpler than previous ones. Furthermore, extending the proof leads to two results regarding MA: MA ZPP NP (which seems to be new), and that two-sided error MA equals MA. Finally, we survey the known facts regarding the fragment of the polynomial-time hierarchy which contains MA.

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تاریخ انتشار 1997