The complexity of multilayer $d$-dimensional circuits

T. Sitdikov^a, G. V. Kalachev<sup>b

a</sup> Google LLC
^b Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Problems of Theorecical Cybernetics Lab

Abstract: In this paper we research a model of multilayer circuits with a single logical layer. We consider $\lambda$-separable graphs as a support for circuits. We establish the Shannon function lower bound $\max ( \frac{2^n}{n}, \frac{2^n (1 - \lambda)}{\log k})$ for this type of circuits where k is the number of layers. For d-dimensional graphs, which are $\lambda$-separable for $\lambda = \frac{d-1}{d}$, this gives the Shannon function lower bound $\frac{2^n}{\min(n, d \log k)}$. For multidimensional rectangular circuits the proved lower bound asymptotically matches to the upper bound.

Keywords: multilayer circuits, multidimensional circuits, Shannon function asymptotics, circuit complexity, graph separators.

Language: English