2 problems

For fixed $N$, let $B_{N-1,K}$ and $W_N^{\rm opt}$ denote the two-branch and standard dyadic Walsh--Hadamard truncation matrices described in the paper, with $K=0,\dots,N$. Two-bra…

Let $\mathcal{C}$ be a set of columns of a dyadic-truncated Walsh--Hadamard matrix $W_\Phi$ with exactly one node, such that each branch is complete above the node. Let…