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A Circuit-Based Proof of Toda′s Theorem

Kannan, R and Venkateswaran, H and Vinay, V and Yao, AC (1993) A Circuit-Based Proof of Toda′s Theorem. In: Information and Computation, 104 (2). pp. 271-276.

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Official URL: http://dx.doi.org/10.1006/inco.1993.1033


We present a simple proof of Toda′s result (Toda (1989), in "Proceedings, 30th Annual IEEE Symposium on Foundations of Computer Science," pp. 514-519), which states that circled plus P is hard for the Polynomial Hierarchy under randomized reductions. Our approach is circuit-based in the sense that we start with uniform circuit definitions of the Polynomial Hierarchy and apply the Valiant-Vazirani lemma on these circuits (Valiant and Vazirani (1986), Thoeret. Comput. Sci.47, 85-93).

Item Type: Journal Article
Publication: Information and Computation
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Electrical Sciences > Computer Science & Automation
Date Deposited: 31 Jan 2011 13:31
Last Modified: 31 Jan 2011 13:31
URI: http://eprints.iisc.ac.in/id/eprint/35268

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