Which bases admit non-trivial shrinkage of formulae?

Hana Chockler, Uri Zwick

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We show that the shrinkage exponent, under random restrictions, of formulae over a finite complete basis B of Boolean functions, is strictly greater than 1 if and only if all the functions in B are unate, i.e., monotone increasing or decreasing in each of their variables. As a consequence, we get non-linear lower bounds on the formula complexity of the parity function over any basis composed only of unate functions.
Original languageEnglish
Pages (from-to)28-40
Number of pages13
JournalCOMPUTATIONAL COMPLEXITY
Volume10
Issue number1
Publication statusPublished - 2001

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