8 citations · 36 across the 32 of their papers we have counts for
Showing 2019 · math.SPShow all
2 papers · 2 filters
math.SP2019
Relatively bounded perturbations of J-non-negative operators
Friedrich Philipp
We improve known perturbation results for self-adjoint operators in Hilbert spaces and prove spectral enclosures for diagonally dominant -self-adjoint operator matrices. These a…
math.SP2019★ 8 cited
Spectral enclosures for a class of block operator matrices
Juan Giribet, Matthias Langer, Francisco Martínez Pería +2
We prove new spectral enclosures for the non-real spectrum of a class of block operator matrices with self-adjoint operators and on the diagonal and operators $B…