37 citations · 96 across the 28 of their papers we have counts for
Showing math-phShow all
2 papers · 1 filter
math-ph2019
Characteristics of Eigenvalues Realized by Path-Connected Sets of Matrices
Alex Kokot, Charles Johnson
We consider path-connected sets of matrices and the induced paths between eigenvalues. We discuss the equivalence relation generated by these paths, and how it relates to the prese…
math-ph2007★ 2 cited
On the Positivity of the Coefficients of a Certain Polynomial Defined by Two Positive Definite Matrices
Christopher J. Hillar, Charles R. Johnson
It is shown that the polynomial \[p(t) = \text{Tr}[(A+tB)^m]\] has positive coefficients when and and are any two 3-by-3 complex Hermitian positive definite matrice…