Volume 8, Issue 1 Leonel Robert Similarity of perturbations of the shift and a different product of rational functions 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 Leonel Robert Find more articles with the same keywords perturbations similarity of operators shift rank one operators rational functions Find more articles with the same subject classes 47A55