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Constant Width Planar Branching Programs Characterize ACC^0 in Quasipolynomial Size

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1 Author(s)
Hansen, K.A. ; Dept. of Comput. Sci., Univ. of Chicago, Chicago, IL

We revisit the computational power of constant width polynomial size planar nondeterministic branching programs. We show that they are capable of computing any function computed by a Pi2 o CC0 o AC0 circuit in polynomial size. In the quasipolynomial size setting we obtain a characterization of ACC0 by constant width planar non-deterministic branching programs.

Published in:

Computational Complexity, 2008. CCC '08. 23rd Annual IEEE Conference on

Date of Conference:

23-26 June 2008