2 problems

Let $\operatorname{\mathcal{T}}_{4,n}$ be the set of interlacing triangular arrays of rank $4$ and height $n$, and let $\square_n$ be the $n\times n$ square grid graph. An edge lab…

Let $\operatorname{\mathcal{T}}_{4,n}$ denote the set of interlacing triangular arrays of rank $4$ and height $n$. Let $\square_n$ be the $n\times n$ square grid graph, and let…