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A 2.5n lower bound on the monotone network complexity of T 3 n
Authors:Paul E. Dunne
Affiliation:(1) Department of Computer Science, University of Warwick, CV47AL Coventry, Great Britain
Abstract:
Summary The k-th threshold function, Tkn, is defined as: 
$$T_k^n left( {x_1 ,...,x_n } right) = left{ begin{gathered}  1     if sumlimits_{i = 1}^n {x_i  geqq k}  hfill   0     otherwise hfill  end{gathered}  right.$$
where xiepsi{0,1} and the summation is arithmetic. We prove that any monotone network computing T3/n(x1,...,xn) contains at least 2.5n-5.5 gates.This research was supported by the Science and Engineering Research Council of Great Britain, UK
Keywords:
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