On universal realizability of spectra

Ana I. Julio, Carlos Marijuán, Miriam Pisonero +1

A list $\Lambda =\{{\lambda }_1,{\lambda }_2,\dots ,{\lambda }_n\}$ of complex numbers is said to be realizable if it is the spectrum of an entrywise nonnegative matrix. The list $\Lambda$ is said to be universall…