A Note on Convertible $(0,1)$ Matrices II

摘要

Let $A$ be an $nimes n$ (0,1) matrix. Let $f(A)$ denote the smallest nonnegative integer $k$ such that $perA[lpha|eta]>0$ and $A(lpha|eta)$ is permutation equivalent to a lower triangular matrix for some $lpha,~ eta in Q_{k,n}$. In this case $f(A)$ is called the feedback number of $A$. In this paper, feedback numbers of some maximal convertible (0,1) matrices are studied.