Generalized tournament matrices with the same principal minors

Abderrahim Boussaïri, Abdelhak Chaïchaâ, Brahim Chergui +1

A generalized tournament matrix $M$ is a nonnegative matrix that satisfies $M+M^t=J-I$, where $J$ is the all ones matrix and $I$ is the identity matrix. In this paper, a characte…