Volume 4, Issue 2 Donald Sarason Unbounded operators commuting with the commutant of a restricted backward shift 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 Donald Sarason Find more articles with the same keywords Restricted backward shift closability transitive algebra problem Find more articles with the same subject classes 47B32 47B35 47D25