A Boolean function on n variables is called k-mixed if for any two different restrictions fixing the same set of k variables must induce different functions on the remaining n-k variables. In this paper, we give an explicit construction of an n-o(n)-mixed Boolean function whose circuit complexity over the basis U 2 is 5n+o(n). This shows that a lower bound method on the size of a U 2-circuit that uses the property of k-mixed, which gives the current best lower bound of 5n-o(n) on a U 2-circuit size (Iwama, Lachish, Morizumi and Raz [STOC '01, MFCS '02]), has reached the limit. © 2008 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Amano, K., & Tarui, J. (2008). A well-mixed function with circuit complexity 5n ±o(n): Tightness of the lachish-raz-type bounds. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4978 LNCS, pp. 342–350). Springer Verlag. https://doi.org/10.1007/978-3-540-79228-4_30
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