Volume 8, Issue 4 Agnes Radl Christiane Tretter Markus Wagenhofer The block numerical range of analytic operator 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 Agnes Radl Christiane Tretter Markus Wagenhofer Find more articles with the same keywords numerical range operator function spectrum eigenvalue resolvent block numerical radius Positive operator Perron-Frobenius theorem gyroscopic system Find more articles with the same subject classes 47A56 47A12