18 citations · 55 across the 30 of their papers we have counts for
37 papers
Commutation principles for optimization problems involving strictly Schur-convex functions in Euclidean Jordan algebras
Pedro G. Massey, Noelia B. Rios, David Sossa
In this work we establish several commutation principles for optimizers of shifts of spectral functions in the context of Euclidean Jordan Algebras (EJAs). For instance, we show th…
Restricted orbits of closed range operators and equivalences between frames for subspaces
Eduardo Chiumiento, Pedro Massey
Let be a separable infinite-dimensional complex Hilbert space and let be a two-sided ideal of the algebra of bounded operators $\mathcal{B}(\mathcal{H})…
On restricted diagonalization
Eduardo Chiumiento, Pedro Massey
Let be a separable infinite-dimensional complex Hilbert space, the algebra of bounded linear operators acting on and $\mathca…
Norm inequalities for the spectral spread of Hermitian operators
Pedro Massey, Demetrio Stojanoff, Sebastian Zarate
In this work we introduce a new measure for the dispersion of the spectral scale of a Hermitian (self-adjoint) operator acting on a separable infinite dimensional Hilbert space tha…
Absolute variation of Ritz values, principal angles and spectral spread
Pedro Massey, Demetrio Stojanoff, Sebastian Zarate
Let be a complex self-adjoint matrix, be -dimensional subspaces and let be a complex matrix whose c…
The spectral spread of Hermitian matrices
Pedro Massey, Demetrio Stojanoff, Sebastian Zarate
Let be a complex Hermitian matrix and let denote the eigenvalues of , counting multiplicities and arranged in non-increas…