Bounds on the Size of Small Depth Circuits for Approximating Majority

  • Authors:
  • Kazuyuki Amano

  • Affiliations:
  • Dept of Comput Sci, Gunma Univ., Gunma, Japan 376-8515

  • Venue:
  • ICALP '09 Proceedings of the 36th International Colloquium on Automata, Languages and Programming: Part I
  • Year:
  • 2009

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Abstract

In this paper, we show that for every constant 0 *** d *** 2, the minimum size of a depth d Boolean circuit that *** -approximates Majority function on n variables is exp(*** (n 1/(2d *** 2))). The lower bound for every d *** 2 and the upper bound for d = 2 have been previously shown by O'Donnell and Wimmer [ICALP'07], and the contribution of this paper is to give a matching upper bound for d *** 3.