On the Perfectness of Minimal Regular Partitions of the Edge Set of the n-Dimensional Cube

Resumo

We prove that, for n equal to 3, 5, and a power of 2, every minimal partition of the edge set of the n-dimensional cube is perfect. As a consequence, we obtain some description of the classes of all minimal parallel-serial contact schemes (π-schemes) realizing the linear Boolean functions that depend essentially on n variables for the corresponding values of n.