On the characterizations of ${\mathcal{D}}_k\backslash {\mathcal{D}}_{k-2}$

Jing Zeng, Lihua You, Xinghui Zhao +1

The determinant of a tournament $T$, denoted by $\det (T)$, is defined as the determinant of the skew-adjacency matrix of $T$. It is well-known that $\det (T)$ is equal to $0$ if $n$…