2 citations · 2 across the 2 of their papers we have counts for
Showing math.SPShow all
2 papers · 1 filter
math.SP2025
On Spectral Stability for Rank One Perturbations
Mario Alberto Ruiz Caballero, Rafael del Rio
Embedded point spectra of rank one singular perturbations of an arbitrary self-adjoint operator A on a Hilbert space H is studied. It is shown that these perturbations can be regar…
math.SP2017★ 2 cited
Resonances under Rank One Perturbations
Olivier Bourget, Victor Cortes, Rafael del Rio +1
We study resonances generated by rank one perturbations of selfadjoint operators with eigenvalues embedded in the continuous spectrum. Instability of these eigenvalues is analyzed…