Multivalued matrices and forbidden configurations

Richard Anstee, Jeffrey Dawson, Linyuan Lu +1

An $r$-matrix is a matrix with symbols in $\{0,1,\dots ,r-1\}$. A matrix is simple if it has no repeated columns. Let $\mathcal{F}$ be a finite set of $r$-matrices. Let $\hbox{forb}(m…