Minimum supports of eigenfunctions of Johnson graphs

Konstantin Vorob'ev, Ivan Mogilnykh, Alexandr Valyuzhenich

We study the weights of eigenvectors of the Johnson graphs $J(n,w)$. For any $i\in \{1,\dots ,w\}$ and sufficiently large $n,n\ge n(i,w)$ we show that an eigenvector of $J(n,w)$…