Volume 9, Issue 4 Edward J. Timko Some examples of extremal triples of commuting contractions 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 Edward J. Timko Find more articles with the same keywords Hilbert space operators commuting contractions extremal elements Find more articles with the same subject classes 47A13 47A45