Matrices commuting with a given normal tropical matrix

J. Linde, M. J. de la Puente

Consider the space $M_n^{nor}$ of square normal matrices $X=(x_{ij})$ over $\mathbb{R}\cup \{-\infty \}$, i.e., $-\infty \le x_{ij}\le 0$ and $x_{ii}=0$. Endow $M_n^{nor}$ with the tro…