Volume 13, Issue 3 Olavi Nevanlinna Sylvester equations and polynomial separation of spectra 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 Olavi Nevanlinna Find more articles with the same keywords Sylvester equation multicentric calculus preconditioning spectral separation Find more articles with the same subject classes 15A24 47A10 47A60 47A62 65F08 65F10 65J10