Volume 11, Issue 2 M. I. Gil' Inequalities for eigenvalues of compactly perturbed unitary operators Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors M. I. Gil' Find more articles with the same keywords Hilbert space eigenvalues inequalities Schatten-von Neumann operators resolvent operator functions spectrum perturbations Sylvester operator equations Find more articles with the same subject classes 47B10 47A55 47A62