Multilinearity Can Be Exponentially Restrictive Preliminary VersionReport as inadecuate


Multilinearity Can Be Exponentially Restrictive Preliminary Version


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We define a Boolean circuit to be multilinear if the formal polynomial associated with it is multilinear as well. We consider the problem of computing the connectivity function using circuits that are monotone and multilinear. Our main result is that monotone multilinear circuits for this function require exponential size. Since connectivity can be computed by monotone Boolean circuits within size On³, our lower bound establishes thatat least in the context of monotone computation, multilinearity can beexponentially restrictive. As an application of our lower bound, we show that connectivity is not in mNL, thereby improving a recent result by Yao that connectivity is not in mNC¹.



College of Computing Technical Reports -



Author: Sengupta, Rimli - Venkateswaran, H. - -

Source: https://smartech.gatech.edu/



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