Factorizations of $k$-Nonnegative Matrices

Sunita Chepuri, Neeraja Kulkarni, Joe Suk +1

A matrix is $k$-nonnegative if all its minors of size $k$ or less are nonnegative. We give a parametrized set of generators and relations for the semigroup of $k$-nonnegative $n\ti…