MacWilliams-type equivalence relations

Soohak Choi, Jong Yoon Hyun, Hyun Kwang Kim +1

Let $\mathcal{P}$ be a poset on $[n]$, $\mathcal{I}(\mathcal{P})$ the set of order ideals of $\mathcal{P}$ and $E$ an equivalence relation on $\mathcal{I}(\mathcal{P})$. The concep…