A note on the nonzero spectrum of irreducible matrices
Shmuel Friedland · arXiv (Cornell University) · 2009
In this note we extend the necessary and sufficient conditions of Boyle-Handleman 1991 and Kim-Ormes-Roush 2000 for a nonzero eigenvalue multiset of primitive matrices over $\R_+$ and $\Z_+$, respectively, to irreducible matrices.