Partitioning Hadamard vectors into Hadamard matrices

Peter G. Casazza, Janet C. Tremain

Published 2016-02-28Version 1

We will show that in a space of dimension $m$, any family of $2^{m-1}$ distinct Hadamard vectors (where you can choose x or -x but not both) can be partitioned into Hadamard matrices if and only if $m=2^n$ for some n. We will solve this problem with a simple algorithm for assigning the vectors to the Hadamard matrices.