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math.SP2018
On universal realizability of spectra
Ana I. Julio, Carlos Marijuán, Miriam Pisonero +1
A list of complex numbers is said to be realizable if it is the spectrum of an entrywise nonnegative matrix. The list is said to be universall…
math.SP2017★ 1 cited
The NIEP
Charles R. Johnson, Carlos Marijuán, Pietro Paparella +1
The nonnegative inverse eigenvalue problem (NIEP) asks which lists of complex numbers (counting multiplicity) occur as the eigenvalues of some -by- entry-wise nonnegative…