S. Zarate

activity

20192021

most citedMajorization bounds for Ritz values of self-adjoint matrices

4 citations · 5 across the 2 of their papers we have counts for

collaborators

Showing 2020Show all

2 papers · 1 filter

math.FA2020

Absolute variation of Ritz values, principal angles and spectral spread

Pedro Massey, Demetrio Stojanoff, Sebastian Zarate

Let $A$ be a $d \times d$ complex self-adjoint matrix, $X, Y \subset C^{d}$ be $k$ -dimensional subspaces and let $X$ be a $d \times k$ complex matrix whose c…

math.FA2020

The spectral spread of Hermitian matrices

Pedro Massey, Demetrio Stojanoff, Sebastian Zarate

Let $A$ be a $n \times n$ complex Hermitian matrix and let $λ (A) = (λ_{1}, \dots, λ_{n}) \in R^{n}$ denote the eigenvalues of $A$ , counting multiplicities and arranged in non-increas…