Volume 11, Issue 3 Hubert Klaja Javad Mashreghi Thomas Ransford Spectral sets for numerical range 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 Hubert Klaja Javad Mashreghi Thomas Ransford Find more articles with the same keywords numerical range spectral set dilation Find more articles with the same subject classes 47A12 47A25